Warren – Page 2 – Election Graphs

More Weakening for Democrats

Since the last blog post on December 22nd, there have been two new state-level polls released: one Mason-Dixon poll in Florida and one Mason-Dixon poll in Virginia. Each of these pitted Sanders, Biden, Warren, and Buttigieg against Trump.

From the categorization view, we had the following changes:

Warren vs Trump:

State category change: FL has moved from Weak Warren to Weak Trump
State category change: VA has moved from Strong Warren to Weak Warren
Expected case change: Warren 276 to Trump 262 -> Warren 247 to Trump 291
Trump best case vs. Warren has changed: Warren 213 to Trump 325 -> Warren 200 to Trump 338
Tipping point change: Warren by 0.6% in FL -> Trump by 0.5% in NC

With this, the "envelope" for Warren vs Trump looks like this:

This shows the full swing between all the states with margins under 5% going one way, and all of them going the other way. With Florida flipping back to a 2.0% Trump lead, Warren once again loses the Electoral College if every state is won by the current poll average leader.

The tipping point moves similarly:

Both of these views show Warren struggling over the past few months to stay ahead of Trump.

When we determine who is winning the Electoral College simply by seeing who leads the poll averages in each state, Warren has sometimes been ahead but has also been behind. The tipping point has been less than 1% for almost a year… since we started getting polls really… so one way or another, Warren vs Trump looks like a close race.

Buttigieg vs Trump:

State category change: VA has moved from Weak Trump to Weak Buttigieg
Expected case change: Buttigieg 226 to Trump 312 -> Buttigieg 239 to Trump 299
Tipping point change: Trump by 1.3% in MI -> Trump by 1.8% in FL

There has been much less polling on Buttigieg vs Trump. This last polling actually moves Virginia in Buttigieg's direction, but that is only because this is the very first Buttigieg poll in Virginia, so it bumps the 8.0% Republican win in 2000 out of the average. The newest poll still had Trump ahead by 2.0%, but because it was less of lead than Bush's win in 2000, it moved the average toward Buttigieg,

But the Florida poll moved the average in that state the other way and the tipping point moves further toward Trump.

None of the categorization based metrics changed for the other candidates, but let's look where things stand right now with everybody before we move on to the probabilistic view.

Dem	22 Dec	6 Jan	𝚫
Biden	+178	+178	Flat
Sanders	+58	+58	Flat
Warren	+14	-44	-58
Buttigieg	-86	-60	+26

So in the Expected Case, Biden still way ahead, Sanders ahead but not by as much, and we now have both Warren and Buttigieg losing.

Dem	22 Dec	6 Jan	𝚫
Biden	+4.3%	+4.3%	Flat
Sanders	+1.0%	+1.0%	Flat
Warren	+0.6%	-0.5%	-1.1%
Buttigieg	-1.3%	-1.8%	-0.5%

In the tipping point view, you can see a bit more clearly how much better Biden is doing than the rest.

However, to be clear, this is still not a secure lead. One month before the 2016 election, Clinton had a 6.0% tipping point lead. Over the course of the last month, this kept slipping, and the actual tipping point in the final election results was Trump by 0.8%. So with the right set of events, the tipping point can move 7% in a month.

We have a long way to go.

Having said that, the categorization view does simplify things. While the poll averages for Biden and Sanders did not change categories, they did move. So let's look at the state averages, and then the probabilistic views:

Biden is now the only Democrat who still has a lead in the Florida poll average. But the bottom line is that whatever Democrat you look at, Florida is close. The range for the four Democrats still in the race goes from a 1.4% lead for Biden to a 2.0% deficit for Warren. Florida is simply too close to call no matter how you slice it.

Once again, in Virginia Biden is doing much better than the other Democrats against Trump. In Virginia Biden is ahead by 9.6%. The other three Democrats who are still in the race all lead, but none by more than 4%.

OK, now for the results of the national probabilistic simulations:

Dem	22 Dec	6 Jan	𝚫
Biden	+126	+132	+6
Sanders	+54	+46	-8
Warren	+22	+2	-20
Buttigieg	-44	-48	-4

The median case only improves for Biden. For every other Democrat, the situation deteriorates, with Warren taking the biggest hit.

One thing to point out is that while Warren loses by 44 electoral votes in the categorization view, looking at the probabilistic simulation, the median case has Warren eking out a 2 electoral vote win.

Why the difference? Because Warren's spectrum of states looks like this:

If everybody wins the states they lead, Warren loses by 44. So she needs to flip 22 electoral votes for a 269-269 tie, and any more than that gets her a win.

There are 121 electoral votes worth of states where Trump leads by 3% or less. Meanwhile, there are only 24 electoral votes worth of states where Warren leads by less than 3%.

To pull off a win, Warren needs to hold Pennsylvania and New Hampshire, but then out of the eight states where Trump has a narrow lead, she only has to get lucky in Florida, or any number of combinations of two states, in order to pull things back over to her side. Given how many states are very close, and how few are close on the other side, it is actually still pretty likely that one of those things would happen.

So how likely?

Dem	22 Dec	6 Jan	𝚫
Biden	99.4%	99.5%	+0.1%
Sanders	82.6%	78.0%	-4.6%
Warren	66.1%	50.8%	-15.3%
Buttigieg	16.5%	14.4%	-2.1%

Warren's odds of winning with that distribution of states is 50.8%. Warren vs. Trump is sitting about as close to a coin toss as we could expect to see.

The odds of a 269-269 tie are also at 1.7%, which is higher than for any of the other three active Democrats here.

Looking at the others, Biden remains at 99%+ with Sanders a bit behind that around 80%, and Buttigieg very very far behind, with only about a 14% chance of pulling out a win.

Of course, that is about the same odds folks gave Trump in 2016.

So that is where we are.

302.1 days until polls start to close.

For more information:

This post is an update based on the data on the Election Graphs Electoral College 2020 page. Election Graphs tracks a poll-based estimate of the Electoral College. The charts, graphs, and maps in the post above are all as of the time of this post. Click through on any image to go to a page with the current interactive versions of that chart, along with additional details.

Follow @ElectionGraphs on Twitter or Election Graphs on Facebook to see announcements of updates. For those interested in individual poll updates, follow @ElecCollPolls on Twitter for all the polls as I add them. If you find the information in these posts informative or useful, please consider visiting the donation page.

Looking at Virginia

I'm trying to get back in the habit of more frequent updates in preparation for actually entering 2020, but there is not much new this time.

Since the last update on December 16th, there has only been a single poll in Virginia. And they only polled Sanders, Biden, and Warren vs. Trump.

The categorization style changes resulting from this were:

Biden vs. Trump state category change: VA has moved from Solid Biden to Strong Biden
Sanders vs. Trump state category change: VA has moved from Strong Sanders to Weak Sanders
Trump best case vs. Sanders has changed: Sanders 217 to Trump 321 -> Sanders 204 to Trump 334

Since there is relatively little new polling this time, instead of just looking at some of the overview candidate comparisons, let's look at each of the Virginia results.

Pollsters have not paid enough attention to Virginia. For Sanders, there have only been three polls. One from UMW and two from VCU. Each of these has released multiple "views" of their data. These detailed results are why you see more than three dots on the chart. For instance, in the latest, a new VCU poll gave results for "all," "registered voters," and "likely voters."

For Sanders vs. Trump, those broke like this:

All: Sanders 46% to Trump 46% (Tie)
Registered Voters: Sanders 45% to Trump 47% (Trump +2%)
Likely Voters: Sanders 45% to Trump 48% (Trump +3%)

When a single poll releases multiple results, Election Graphs essentially averages the results. So, in this case, these three results together count as a Trump +1.67% poll.

The Election Graphs average now contains three actual 2020 polls, plus the 2016 and 2012 election results to round out the average giving Sanders a 4.4% lead in Virginia.

Just looking at the three actual polls, though, you can see each subsequent result has been worse for Sanders than the previous one. That is probably not the trend he would like to see.

But this is where I go back to what I said at the start. There have only been three polls. It is easy to see trends that are not real when you only have three data points. We need more.

But this last poll moves the average back into the competitive zone. Although Virginia has been trending blue, Democrats may not want to take it for granted.

Biden vs. Trump also shows each of the last three polls weaker for Biden than the one before. Except there is one additional 2020 poll, the leaked Trump internal poll from March. That provides one more data point showing a strong Democratic lead, and Biden's numbers have been better than Sanders anyway, so we end up at a Biden +9.9% average, which is slightly worse than the 10.1% lead before this latest poll. The line isn't moving toward Trump as much as with Sanders, but Biden still shows weakening.

The latest couple of polls have been significantly weaker, though, so again, we need more Virginia polls.

Warren shows a similar pattern to Sanders, except a little bit stronger, with the average standing at a Warren +5.0% lead.

The Democrats weakening in Virginia continues the trends I discussed last time. The fall was not great for the Democrats.

The longer-term trends are evident in the graphs, but see the charts below for the new changes caused by the one new VCU poll in this update.

Dem	16 Dec	22 Dec	𝚫
Biden	99.4%	99.4%	Flat
Sanders	83.5%	82.6%	-0.9%
Warren	67.2%	66.1%	-1.1%
Buttigieg	16.5%	16.5%	Flat

Dem	16 Dec	22 Dec	𝚫
Biden	+126	+126	Flat
Sanders	+56	+54	-2
Warren	+24	+22	-2
Buttigieg	-44	-44	Flat

On the categorization view, there were no changes to the Expected Case or Tipping Point numbers, so we'll skip those this time.

And that's where we are.

317.1 days until polls start to close.

For more information:

Is Impeachment Hurting the Dems?

Once again, too long between updates. Since the last one on November 20th there have been new polls in Wisconsin (x3), New Hampshire, California (x2), Texas (x2), Arizona, Michigan, Pennsylvania, and Iowa.

If I'd been posting weekly as I had intended, there would have been a post looking at how Election Graphs win odds correlated to the popular vote polling averages at RCP and using that to measure the Democrats' Electoral College disadvantage. (Spoiler: As of right now it looks like Democrats need an approximately 6% popular vote win margin to have a 50/50 chance of winning the Electoral College.)

I also would have done a post talking about how while for us political junkies, it seems inconceivable that people don't know who at least the top five Democratic candidates are, this article in the Washington Post by Robert Griffin lays out a pretty convincing case that a large part of the differences in polling between Democratic candidates vs. Trump is STILL simply that lots of people don't know who some of these people are, something that clearly would change before Election Day if they were to win the nomination. That is obviously very important when interpreting what we see here on Election Graphs, which is 100% driven by state level general election matchup polls.

But I kind of missed talking about both those points when they were fresh. So I'll let the above suffice for now.

The main thing I want to look at today is this:

This shows the median electoral college result from the Election Graphs Monte Carlo simulations for each candidate pair.

For both Biden and Sanders there is a very clear "V" shaped pattern. (OK, if you look closely, you can see a "W", but the large scale pattern is a "V".) In the first half of this V, as new polls came in and the state averages moved from the baseline based on the 2000-2016 elections, to averages based on 2020 polls, almost every poll made Sanders and Biden look better.

Although he dropped out already, you can see a smaller scale version of this "V" pattern with O'Rourke as well.

Buttigieg doesn't show the initial portion of this V. As the initial polls came in, his results basically just stayed at about the same level as the 2000-2016 baseline. Frankly though, there was very little Buttigieg vs. Trump state level polling in this time frame though, which would explain that.

But all four of these candidates share the second half of the "V". Starting at a specific point in time, as new polling results came in, more often than not, the state averages would move away from the Democrat, and so the median electoral college results would also move the same direction.

When you look at the charts, the inflection point seems to be… well… very close to the date Nancy Pelosi announced that she was officially backing the impeachment investigation over the Ukraine issue.

There are some ups and downs, and you could argue that the best numbers for the Democrats were perhaps a little bit earlier or a little bit later, but roughly speaking, leading up to that announcement on September 24th, every week Sanders, Biden, and O'Rourke looked better in the polls than the week before, while Buttigieg held steady. After September 24th though, Sanders, Biden, Buttigieg, and O'Rourke all looked weaker in each subsequent week.

This may be a coincidence. It may just relate to which pollsters put out polls in which states during this time period. It may just be a "reversion to the mean" after a series of earlier polls were more favorable to the Democrats than was really reflected by the ground truth…

But the location of the inflection point compared to the date when impeachment moved from something a few people were talking about, to a real thing that was happening is hard to ignore. It certainly LOOKS like the impeachment efforts are hurting the Democratic candidates in state level head to head polling against Trump. State after state where the polling averages had moved from red to blue, have now slipped back into the red again.

But wait. There has been one clear omission in the discussion above.

Warren's trend line just does not match the patterns followed by the four candidates discussed above. (Neither did Harris's for that matter, but she dropped out, so we won't spend more time there.) There is no clear "V" shape like Sanders, Biden, and O'Rourke. Nor does Warren follow Buttigieg's pattern.

In fact, Warren does not show any change that looks like it coincides with impeachment events. Initially as early polls came in, she looked like she would do worse than the median based on the 2000-2016 averages. Then she started doing a little better than that. And now she's a little worse again.

The fact that the reversal in fortunes that lines up with the impeachment announcement does not seem to apply to Warren (or Harris) seems notable. After all, Warren was one of the first Democratic candidates to come out strongly in favor of impeachment, and she did so strongly. If there was an impact from impeachment, why wouldn't it touch her? Perhaps even more than other candidates? This may in fact be an argument toward this movement NOT being tied directly to impeachment, but rather to something unrelated.

Without information that specifically digs into motivations rather than just candidate preferences, it is hard to say anything definitive. But the alignment certainly is suggestive. We shall see if those trends continue as the impeachment saga continues to play out.

In the mean time, we'll close out by looking at the changes in our main metrics since the last update post, followed by some of the state level charts.

Dem	20 Nov	16 Dec	𝚫
Biden	+158	+126	-32
Sanders	+88	+56	-32
Warren	+50	+24	-26
Buttigieg	-6	-44	-38

All four still active Democrats weakened significantly in their "median case" from the Election Graphs Monte Carlo simulations.

This has not been a good month for the Democrats.

Dem	20 Nov	16 Dec	𝚫
Biden	99.9%	99.4%	-0.5%
Sanders	95.0%	83.5%	-11.5%
Warren	81.8%	67.2%	-14.6%
Buttigieg	44.3%	16.5%	-27.8%

Given how far ahead Biden was, his win odds are still 99%+. But the other three took pretty big hits these last few weeks.

Especially Buttigieg. Last time he was already the only candidate with a less than 50% chance of beating Trump. But now that has dropped to a paltry 16.5%.

Dem	20 Nov	16 Dec	𝚫
Biden	+210	+178	-32
Sanders	+118	+58	-60
Warren	+48	+14	-34
Buttigieg	+6	-86	-92

Using the older and simpler "expected case" where every candidate simply wins every state where they lead the polls, you see similar across the board drops to what you see in the "median case" from the simulation, but the drops are even more dramatic.

Dem	20 Nov	16 Dec	𝚫
Biden	+4.4%	+4.3%	-0.1%
Sanders	+1.8%	+1.0%	-0.8%
Warren	+0.6%	+0.6%	Flat
Buttigieg	+0.2%	-1.3%	-1.5%

For the tipping point, which measures how much of a gain would be needed to flip the electoral college winner if that gain occurred uniformly across all states, Warren manages to stay flat, but the other three Democrats get weaker.

Finally, presented without additional commentary, the updated state charts in each of the states with new polling. You'll notice the recent swing toward Trump occurs in almost every state.

The news is coming hot and heavy these days. Iowa is now less than 50 days away. Things will develop quickly. Stay tuned.

323.6 days until polls start to close.

For more information:

Goodbye Blue Texas

It has once again been longer than I like, but it is time for another post.

Since the last update, there have been new polls in Michigan (x3), Nevada (x2), Texas (x2), Arizona (x2), Pennsylvania (x3), Florida (x2), North Carolina (x3), Wisconsin (x2), Iowa, Georgia (x4), and New Hampshire.

That is a lot. Sorry about that. Oops.

The most striking individual state result is that after peaking in September with three of the top six Democrats leading Trump in the Texas averages, and two more getting close, Texas has been moving back toward Trump.

As of now, none of the six most polled Democrats lead in Texas, and only three of those keep Trump's lead to less than 5%. And one of those (O'Rourke) has already dropped out of the race, leaving only Sanders and Biden still making it close.

Converting this to win odds, Biden has a 30.1% chance of winning the state (if the election was today), and Sanders has a 25.0% chance of winning.

None of the rest (except O'Rourke, who is out) is above 5%.

So Texas is reverting to form. It may be closer than it has been in previous years, but at least for the moment, the Democratic hopes for a blue Texas seem to be fading.

I'll go over other states with new polling at the end of the post, but first, a look at four ways of looking at the changes in the national summary since the last post.

O'Rourke vs. Trump is now in the top six best-polled candidate combinations (replacing Sanders vs. Pence). But since O'Rourke dropped out, we will leave him out and only look at the top five for now.

I haven't done posts showing the update-to-update comparisons for the older "categorization method" before, but since that used to be the bread and butter of Election Graphs, let's start there.

Dem	1 Nov	20 Nov	𝚫
Biden	+254	+210	-44
Sanders	+190	+118	-72
Warren	+38	+48	+10
Harris	+20	+20	Flat
Buttigieg	+6	+6	Flat

In this "expected case" view, where every candidate wins every state where they lead in the poll average, both Sanders and Biden have lost ground.

Warren improves her position a little.

Harris and Buttigieg are flat.

Dem	1 Nov	20 Nov	𝚫
Biden	+5.3%	+4.4%	-0.9%
Sanders	+4.7%	+1.8%	-2.9%
Harris	+1.4%	+1.4%	Flat
Warren	+0.3%	+0.6%	+0.3%
Buttigieg	+0.6%	+0.2%	-0.4%

Looking at the tipping points, which is analogous to the popular vote, but adjusted for the structure of the electoral college, once again, Warren is the only Democrat who is improving.

Harris is flat.

Biden, Sanders, and Buttigieg all lose ground to different degrees.

Note that while for a short time, Biden had a tipping point greater than 5%, meaning he could win using only states where he led by more than 5% and didn't even need any swing states. That is no longer true.

Now all five of these Democrats have tipping points indicating that they need to win at least some tight states to win.

Now, moving on to the more elaborate probabilistic model I look at a bit more these days…

Dem	1 Nov	20 Nov	𝚫
Biden	+184	+158	-26
Sanders	+124	+88	-36
Warren	+36	+50	+14
Harris	+8	+12	+4
Buttigieg	-4	-6	-2

This view shows the "Median Case." The median case is the electoral vote margin in the exact middle of the 1,000,001 simulation runs done for each candidate combination when sorted by the margin. About half the time, the Democrat does better than this. About half the time, they do worse.

Warren and Harris both improve a bit. Biden, Sanders, and Buttigieg all lose ground.

Note that while in the classification view, all five Democrats lead Trump, in the probabilistic view, Buttigieg's median case is actually to lose.

But we need to look at probabilities, not the single "median case" estimate. You should not think that since a candidate is ahead or behind on the median case, that maps to winning and losing.

For instance, Buttigieg's median case is a six electoral vote loss to Trump. But if you look at the 2σ range, that is the range of outcomes that you would expect to occur 95.45% of the time; you get a range from Buttigieg winning by 92 electoral votes to Trump winning by 90 electoral votes.

There is a huge range of possibilities. It isn't just "Trump is ahead in the median case, so he wins."

So time to look at the win odds…

Dem	1 Nov	20 Nov	𝚫
Biden	100.0%	99.9%	-0.1%
Sanders	98.3%	95.0%	-3.3%
Warren	73.1%	81.8%	+8.7%
Harris	54.6%	58.2%	+3.6%
Buttigieg	46.0%	44.3%	-1.7%

The trends above, which cover just under three weeks, show Warren and Harris improving, while Biden, Sanders, and Buttigieg slip back.

But looking back a bit farther, we can see some overall trends going back to September.

Biden continues to be pegged at a 99%+ chance of winning. His lead in some states has slipped, but his overall margins are high enough that this hasn't yet started to impact his chances of winning.

Sanders never had as big a margin lead as Biden, so as some of those states slipped back toward Trump, you see a more significant impact on his odds of winning.

Harris and Buttigieg have never done all that much better than a coin flip against Trump, peaking at around a 70% chance of winning. But since September, they have both dropped significantly, with Buttigieg now only at a 44.3% chance of winning, and Harris only at 58.2%.

The only candidate consistently improving over the last few months has been Warren. She bottomed out at only a 41.7% shot of winning in June, and while there have been ups and downs, the trend is clearly in Warren's direction.

We will, of course, see if that lasts. As can be seen by the spike toward Trump in June, trends can reverse quite quickly.

Now, besides Texas, here are a few additional states where there are trends worth noting. (Since so many places had new polls, I'll skip a few where there is less to comment on.)

No clear trends in Florida except to note that it is an exceptionally close race no matter which Democrat you match up against Trump. As has been usual for the last few presidential races, Florida is right on the line. And it is big. So it makes a huge difference.

The general trend in Pennsylvania, Michigan, and Wisconsin over the past few months has been for Democratic leads to decrease.

In Pennsylvania, there is no Democrat with more than a 5% lead, and Warren (and O'Rourke) are both slightly behind.

At this point, only Biden has a lead higher than 5% in Michigan.

In Wisconsin, all the Democrats still lead, but none by more than 5%.

These are, of course, the three states that gave Trump his victory in 2016. At the moment, they are all looking to be close battlegrounds once again.

The people who say that the Democratic nominee needs to pay close attention to these states are certainly not wrong.

And at the moment, the Democrats seem to be slipping in all three.

Pollsters have not paid as much attention to Georgia as I would like. But there have been a bunch of polls in the last few weeks and they show a competitive state, which is a significant change from the historical average.

The poll average now shows Biden and Sanders ahead, with Warren, Harris, and Buttigieg all bringing Trump's lead under 5%.

(O'Rourke has never been polled in Georgia, and now that he has dropped out, probably will never be. Sniff.)

Although Biden has reversed a bit recently, overall Sanders, Warren, and Biden are making North Carolina a narrowly fought battleground.

Harris and Buttigieg, while they are still keeping Trump's lead under 5%, do not seem to be gaining any additional ground lately.

Arizona has also been moving toward the Democrats. At least for Sanders, Warren, and Biden. Warren and Biden actually are slightly leading. Sanders brings Trump's lead under 5%.

Harris and Buttigieg, on the other hand, are not making things much closer than the historical 7.6% average Republican margin in the state. Just as in North Carolina, they lag behind the stronger Democrats.

So Trump is gaining in Texas, Pennsylvania, Michigan, and Wisconsin.

But the Democrats are gaining in Georgia, North Carolina, and Arizona.

As we get closer, things will heat up; there will be lots more polls and more movement.

Are we having fun yet?

349.7 days until polls start to close on election night.

For more information:

Harris and Buttigieg Struggling in Trump Matchups

Apologies for the radio silence. I had been trying to post a blog update here weekly, but things got in the way the last few weeks. One of the items was the fact that my wife Brandy is running for local office, and I've been helping do things like put out signs and such. If you happen to live in South Snohomish County, Washington, take a look at her campaign site and vote! Ballots are due Tuesday! No polls for races like this, so no previews. We'll see the results when we see the results.

In any case, it is only the blog summaries that have suffered; the actual polls have continued to be updated this whole time. You can always check the 2020 Electoral College page for the current status. In any case, let's look at what has changed.

Since the last update, there have been new polls in North Carolina (x2), Ohio (x2), Virginia, Maine (All), Iowa, Minnesota, California, Florida, Wisconsin, Arizona, and Washington.

Let's look first at the changes to the national probabilistic views.

The main theme of the nearly three weeks since the last update is Harris and Buttigieg doing significantly worse in matchups against Trump.

Dem	13 Oct	1 Nov	𝚫
Biden	+166	+184	+18
Sanders	+124	+124	Flat
Warren	+30	+36	+6
Harris	+20	+8	-12
Buttigieg	+24	-4	-28

All of the above vs. Trump. Sanders vs. Pence flat at Sanders +28.

The decline for Harris and Buttigieg is even more apparent in the win odds:

Dem	13 Oct	1 Nov	𝚫
Biden	99.9%	100.0%	+0.1%
Sanders	98.3%	98.3%	Flat
Warren	70.6%	73.1%	+2.5%
Harris	68.0%	54.6%	-13.4%
Buttigieg	66.8%	46.0%	-20.8%

All of the above vs. Trump. Sanders vs. Pence at a 72.7% chance of a Sanders win. This percentage is down 0.1% from 72.8% on 13 Oct, but this is just random fluctuation of the Monte Carlo model, not a real change. (There was one new Sanders vs. Pence poll, but it was in California and did not make any difference.)

Biden ticks up to 100.0%, but that is because I round. It is really 99.98% at the moment. Still, Biden is doing extraordinarily well in these state by state polls against Trump and continues to get stronger.

Note that Buttigieg is now at a less than 50% chance to win against Trump. The last time any of the most polled Democrats were under 50% was in June when Warren briefly dropped below that threshold before rebounding.

At this point, there are three tiers of Democrats against Trump.

Winning decisively: Biden and Sanders
Leading, but narrowly: Warren
Coin toss: Harris and Buttigieg

Next, let's look at the changes in each state with new polls to see what is driving the national results.

Starting with California since it has the most electoral votes, but you won't find any hints as to changes to the national picture here. California is very solidly blue, and nothing is changing about that.

Florida, on the other hand, has lots of electoral votes and is close. So small changes make a big difference. Harris is now 2.6% behind Trump, which translates into only having a 16.6% chance of winning the state, down from 24.2% before this update. With 29 electoral votes at stake, that makes a real difference in the overall picture.

Similarly, Buttigieg moves from a 45% chance of winning the state down to 35%.

Compare to Biden with a 2.7% lead and a 71% chance of winning.

Florida is important. Winning it is part of many paths to victory on the national level.

So when Biden and Warren make gains in Florida and lead, while Harris and Buttigieg fall further behind, it makes a difference.

No category changes, but Sanders, Warren, and Biden are clearly improving, while Harris and Buttigieg (whose lines overlap) are moving in the opposite direction. In win chance terms, Harris and Buttigieg move from a 40% chance of winning Ohio, down to only 23%.

North Carolina is a key state. It is in the "swing state" zone for all five of these Democrats against Trump.

Sanders flipped from just barely winning, to barely losing in North Carolina.

That was the only category change, but both Biden and Buttigieg weakened considerably here. Looking at how this translates into win chances, Biden goes from a 91% chance of winning North Carolina to a 68% chance. Either way, still nicely favored, although certainly by less than before.

But Buttigieg drops from a 30% chance of winning down to only about 8%. Basically, from "OK, he's behind but has a shot" to "Yeah, not impossible, but it would be a major upset if he pulled off a win."

Every Democrat improves in Virginia. The state is still significantly under polled. So far, each update makes it look bluer as real 2020 polls replace old elections in the averages.

Biden's lead moves from "strong" to "solid" in my categorization.

Sanders' and Warren's leads both improve from "weak" to "strong" in the categories.

All the polled Democrats increased their leads over the historical average margin. Washington is a blue state that is getting bluer. It is not in contention right now.

In Arizona, Warren improves a little bit against Trump, but every other combination is flat.

All of the Democrats have significant leads in Minnesota, and the new polling just increased the margins for those polled. Minnesota is not currently in play.

With this last update, Wisconsin moved from Weak Biden to Strong Biden, and from Strong Sanders to Weak Sanders.

But the most significant change was for Buttigieg, whose 4.2% lead (85% chance of winning) dropped to a 1.0% lead (56% chance of winning).

Iowa is a swing state for all candidate combinations. But with this last update, Sanders and Warren both weakened, with Sanders moving from slightly ahead to slightly behind. Biden strengthened, moving from just slightly behind to just slightly ahead. Warren drops to only a 14% chance of winning the state.

The worst Democrat in Maine (Biden) still has a 99.2% chance of winning the state. Maine (CD2) might come into play again, but Maine as a whole doesn't look like it will.

That's all the states.

Now to wrap things up by looking at the changes on the categorization view. I prefer the probabilistic view these days, but just looking at who leads where and by how much is still useful.

The expected case changes:

Biden vs. Trump: Biden +242 to Biden +254
Sanders vs. Trump: Sanders +232 to Sanders +190
Warren vs. Trump: Trump +20 to Warren +38

And the tipping point changes were:

Biden vs. Trump: Biden by 4.4% in WI to Biden by 5.3% in PA
Sanders vs. Trump: Sanders by 4.3% in VA -> Sanders by 4.7% in VA
Warren vs. Trump: Trump by 0.1% in NC to Warren by 0.3% in FL

A reminder that sometimes the "median case" in the probabilistic view can have a different leader than the "expected case" in the categorization view.

Divergence like this occurs when there are states that the leader barely leads, and there is a better chance of enough of them to make a difference flipping than there is of states flipping the other direction.

One final categorization comparison to show the three tiers of Democratic candidates against Trump that I mentioned at the start of the post. Time to look at the "spectrum of the states" for the five Democrats against Trump and compare what they look like:

The Democrats that are winning decisively:

The Democrat who is leading, but narrowly:

The Democrats whose chances are a coin toss:

And that is where we are.

367.7 days until polls start to close.

For more information:

Slow Week

Since last week's update, there have been new polls in Montana, Connecticut, and North Carolina.

Warren vs. Trump is now the "best-polled candidate combination" based on the metric I use, so it is now the default when you go to the Election Graphs 2020 Electoral College page, displacing Biden vs. Trump.

Overall this week, Biden weakened a little bit versus Trump, but he is so far ahead at the moment it doesn't make much difference. All of the other Democrats tracked here get a little bit stronger against Trump with this week's polling.

Looking at the categorization model first, only North Carolina made a difference:

Biden's lead decreased a bit. Sanders and Harris improved a lot. Warren and Buttigieg got a little stronger.

So how did this impact the national picture?

Let's look at some graphs to illustrate the changes.

Biden vs. Trump tipping point change: Biden by 5.1% in NC -> Biden by 4.4% in WI
Warren vs. Trump tipping point change: Trump by 0.1% in FL -> Trump by 0.1% in NC

Biden vs. Trump state category change: NC has moved from Strong Biden to Weak Biden
Trump best case vs. Biden has changed: Biden 283 to Trump 255 -> Biden 268 to Trump 270

So the categorization model once again has the "best case" in Biden vs. Trump include a Trump win if he wins ALL of the swing states because Biden's lead in North Carolina slipped to below the 5% mark, bringing it back into play.

Sanders vs. Trump state category change: NC has moved from Weak Trump to Weak Sanders
Sanders vs. Trump expected case change: Sanders 370 to Trump 168 -> Sanders 385 to Trump 153

In terms of the expected case, where everybody wins every state where they lead the average, with Sanders now taking the lead in North Carolina, he would win by 232 electoral votes, nearly matching Biden's 242 electoral vote margin in this scenario.

In this expected case, Biden and Sanders have substantial leads over Trump. Harris and Buttigieg have very narrow edges. (As does Sanders against Pence.) Warren loses to Trump.

The picture from the tipping point is very similar.

Time to flip to the probabilistic model. How do things look this week?

Since we were looking at the "expected case" in the categorization model, let's look at the median Monte Carlo result first:

Dem	6 Oct	13 Oct	𝚫
Biden	+170	+166	-4
Sanders	+114	+124	+10
Warren	+28	+30	+2
Buttigieg	+22	+24	+2
Harris	+18	+20	+2

All of the above vs. Trump. Sanders vs. Pence flat at +28.

Unlike the categorization view, all of the Democrats lead here, although we once again see a situation where Biden and Sanders have very substantial leads, while Warren, Buttigieg, and Harris have very narrow edges.

Biden slips just a little this week, while Sanders has the biggest gain in terms of the median electoral vote margin.

And now the odds:

Dem	6 Oct	13 Oct	𝚫
Biden	99.9%	99.9%	Flat
Sanders	97.3%	98.3%	+1.0%
Warren	68.9%	70.6%	+1.7%
Harris	64.0%	68.0%	+4.0%
Buttigieg	66.5%	66.8%	+0.3%

All of the above vs. Trump. Sanders vs. Pence flat at 72.8%.

Biden has a substantial enough lead that the little change this week doesn't have a notable impact on his percentage chances.

As Sanders' position in the various state polls continues to improve, he is rapidly catching Biden in terms of how solid his lead over Trump looks.

Harris improves the most this week, but Warren, Harris, and Buttigieg remain stuck in the high 60's, low 70's. Certainly favored to win over Trump, but by no means sure things.

To date, the most common explanation for this division has been name recognition. People know Biden and Sanders. Aside from political junkies, like anybody who might be reading this, "normal" people still aren't paying attention yet, and when polled about these other names may not have a good idea who they are.

The further along we get though, the less likely that is to explain things thoroughly. Now, some national polls have started to show that the gap between Warren and Biden in their performance vs. Trump has been decreasing as Warren gains in the Democratic primary competition. If so, this has been a relatively recent change, and will still take a while before we can see this in the state-level polls we look at here at Election Graphs.

If these kinds of differences persist when we get to actual caucus and primary voting in February, however, then it might be time to acknowledge that there could be real differences in how well the various Democratic candidates could be expected to fare in a general election.

386.6 days until polls start to close on Election Day 2020.

For more information:

Enter Pence?

Since last week's update, there have been new polls in Michigan, Ohio, and Wisconsin.

First of all, I should mention that while the 2020 Electoral College page on Election Graphs lets you pick any Democrat and any Republican that has been polled in the 2020 cycle, here on the blog, we restrict ourselves to talking about the six "best polled" candidate combinations. I use a metric for this that is a weighted average of how far back in time the "five poll averages" go in each state. The weighting gives low margin states more influence in the metric than places where one candidate is far ahead.

Up until now, this had been six different Democrats vs Trump. In mid-September though, SurveyUSA did a poll of California that included Pence and Haley as potential Republicans in the general election too. And this last week, Emerson included Pence in a poll of Ohio.

This is pretty sparse polling, but it happened to make the new Sanders vs. Pence polling average in Ohio very close to a tie, which because of the way my metric for "best polled" works, increases the Sanders vs. Pence poll quality up higher than it probably deserves, and Sanders vs. Pence bumps O'Rourke vs. Tump off of my top six.

I suspect this will not last, but for now, I'm looking at Biden, Sanders, Warren, Buttigieg, and Harris vs. Trump… and Sanders vs. Pence.

Within these candidate combinations, the only change in the categorization model was Ohio flipping from just barely Trump, to just barely Sanders:

The current average here includes three actual 2020 polls, plus the 2008 and 2016 elections, ending up with a 0.2% Sanders lead. Now, this is one of those zones that is a bit different. Based on the historical performance of Election Graphs averages, a 0.2% Democratic lead only translates into a 47.8% chance of the Democrat winning.

The categorization model doesn't care about that, though. Ohio is now on the blue side of the centerline for Sanders, so the "Expected Case" includes him winning Ohio. Sanders now leads in this "everybody gets all the states where they lead in the average" case by 202 electoral votes.

I've been spending a lot of time on these blog posts lately on the probabilistic model, and I'll get to that in a second, but first a quick look at the expected cases for all six of the best-polled candidate matchups in terms of the categorization model:

Biden leads Trump by 242 electoral votes. Sanders now leads Trump by 202 electoral votes. Every one of the other combinations is a close race. The only Democrat losing is Warren, who falls short by 20 electoral votes.

Flipping back to the probabilistic view, which takes into account all the changes in all three states that got polls this week, not just the one category change, we see this:

Dem	29 Sep	6 Oct	𝚫
Biden	99.9%	99.9%	Flat
Sanders	97.2%	97.3%	+0.1%
Warren	66.7%	68.9%	+2.2%
Buttigieg	66.5%	66.5%	Flat
Harris	64.0%	64.0%	Flat

Of these five, only Biden, Sanders, and Warren received new results this week. Nothing new for Buttigieg or Harris.

But let's not forget Sanders vs. Pence. Based only on the results of the last five presidential elections, this stood at a 68.1% chance of a Sanders victory. The earlier California poll had not changed this at all. But adding the new Ohio poll to the average brings Sanders up to a 72.8% chance of beating Pence.

Let's also look at how the median electoral college result for these candidate matchups have changed in the last week:

Dem	29 Sep	6 Oct	𝚫
Biden	+166	+170	+4
Sanders	+112	+114	+2
Warren	+30	+28	-2
Buttigieg	+22	+22	Flat
Harris	+18	+18	Flat

And of course, Sanders vs. Pence. The result based only on the last five election results was Sanders +22. The new polling moves that to Sanders +28.

And that's it for this week.

393.7 days until polls start to close.

For more information:

Blue Virginia

Since last week's update, there was only one new poll released, a University of Mary Washington poll of Virginia.

They polled Biden, Sanders, Warren, and Harris against Trump. No new data for Buttigieg or O'Rourke.

This poll was the first public polling of Virginia this cycle. The only glimpse we had previously was leaked Trump internal polling from March which only included Biden.

Virginia has been trending blue over the last few elections, but Election Graphs starts with the average of the previous five elections before we have polls and the average margin from 2000 to 2016 ended up as a 0.1% Republican lead.

The leaked Biden vs. Trump poll moved the state from Weak Trump (by 0.1%) to Weak Biden (by 4.9%) in the Election Graphs average, but with no 2020 data, all the other Democrats remained in "Weak Trump" territory despite the general sense that because of the trends in Virginia, this was unlikely to stay the case.

At long last, we have a new public poll of Virginia though. So we start to see how the state looks for 2020.

All four Democratic candidates led Trump by double digits in this new poll. The poll averages still include some older election results though, since this is the first 2020 polling in Virginia for every matchup except Biden vs. Trump.

In terms of categories, this moved the state from "Weak Trump" to "Weak Democratic" for Sanders, Warren, and Harris.

Biden, having already taken the lead after that leaked Trump internal poll, now moves from "Weak Biden" to "Strong Biden."

In terms of odds of winning, that means that every Democrat that has been polled in Virginia so far is estimated to have an 80%+ chance of winning the state according to the historical accuracy of Election Graphs poll averages.

As usual, I must repeat the universal caveat on this site: These numbers are if the election was today. The election is not today, a lot will change between now and then.

Also, in this case, we still have sparse polling.

So, what does the national picture look like now in terms of the chance of the Democrat winning?

Dem	22 Sep	29 Sep	𝚫
Biden	99.9%	99.9%	Flat
Sanders	95.3%	97.2%	+1.9%
O'Rourke	83.1%	83.1%	Flat
Warren	62.4%	69.7%	+7.3%
Buttigieg	66.5%	66.5%	Flat
Harris	54.7%	64.0%	+10.7%

It is hard for Biden to improve his position much given where he is, but the movement of Virginia in the blue direction helps the other three Democrats with poll results, with the most significant boost going to Harris.

And that is all for this week.

400.9 days until polls start to close.

For more information:

Another Mixed Week for Dems

Since last week's update, there has been new polling released in Arizona (x2), Colorado, Kentucky, Maine, North Carolina, California (x2), Florida, Texas, and Missouri.

Once again we have mixed results.

Two of the six most polled Democrats (Biden and O'Rourke) improve their positions in the probabilistic view when you combine the results of all of those polls.

The other four (Sanders, Buttigieg, Warren, and Harris) slip in their matchups against Trump. Some weaken significantly.

So let's start with the national "Odds of a Democratic Win" view:

Dem	15 Sep	22 Sep	𝚫
Biden	99.8%	99.9%	+0.1%
Sanders	96.9%	95.3%	-1.6%
O'Rourke	80.8%	83.1%	+2.3%
Buttigieg	67.0%	66.5%	-0.5%
Warren	69.0%	62.4%	-6.6%
Harris	65.7%	54.7%	-11.0%

The two that stand out here are Warren and Harris. The new polls this week hurt their win chances significantly. Harris is now looking only slightly better off than a coin toss in a race against Trump.

We'll look at each state to determine where these changes are coming from, but first, you can also see this pattern dramatically when looking at the "Median Case" from the Monte Carlo simulations.

In this view, you can see that the winning margins of every Democratic candidate except O'Rourke have been decreasing lately. Including Biden.

A lot of the "movement" of these various lines up until now could still be attributed to actual 2020 polling replacing old elections in our state polling averages. We are getting to the point though where a lot (although not all) of the critical states are mostly 2020 polls.

So we may start seeing trends that represent real changes in public opinion. We will also begin to see what level of variability is just inherent in looking at the election this way. It may end up being "normal" that some of these lines bounce up and down quite a bit as we go along.

In the meantime though, time to look at the trends in each of the states where there was new polling over the last week. There are a lot, so I'll be brief.

California is so blue; it is mostly irrelevant to the national race. All of the Democrats have a 100% chance of winning California. It is notable though that all six candidates are doing even stronger in California than the historical average from the 2000 to 2016 elections. California is getting even bluer.

A lot of the win odds changes this week can be attributed to Texas. With the latest polling in Texas, the trend of each new poll moving the state further in the Democratic direction has ended. Biden and O'Rourke still improve slightly, but every other Democrat erodes. Along with Biden and O'Rourke, Sanders retains a lead. Warren, Harris, and Buttigieg not only lose Texas but the picture of them "making it close" is slipping. At least this week.

Florida is the other big state responsible for much of this week's changes. The only Democrats who did not weaken in Florida this week are the ones that were not in the polls. Florida has a lot of electoral votes, and Florida is close, so it has an outsized impact on the national picture.

The only mover this week in North Carolina is Biden, with his average moving to a greater than 5% lead for the first time. Trump leads all the other Democrats by narrow margins.

Arizona is another state where there is a big gap between Biden and the rest of the field. This week Biden took the lead in the Arizona poll average. Add Arizona to Texas as red states that flip, and you can see why Biden's national position remains so strong. Sanders also makes Arizona close, but all of the other Democrats are hovering around the historical average, which is a Strong Republican win.

Missouri is clear red state, and with two polls so far this cycle, it just looks like it is getting redder.

At the same time, Colorado is getting bluer. Only Biden moves the state into Strong Democrat territory so far though. The other candidates still only have narrow leads in the polling average.

Kentucky is red and not in contention for 2020. With the small amount of polling so far though, Biden still does best, actually decreasing the Republican margin slightly. Not so much for the others.

Finally Maine. Maine is blue and does not look to be changing into anything else. With the first few polls, Biden looked like he might be making it even bluer than before. But as we stand today, all of the Democrats are pretty close to the historical average for the state.

And that is where things are this week.

408.0 days until polls start to close.

For more information:

Some Dems Up, Some Dems Down

Since last week's update, there have been two new polls in Texas, and one each in New Hampshire, Wisconsin, Michigan, and Pennsylvania.

For the six most polled Democrats against Trump (Biden, Sanders, Warren, Buttigieg, Harris, and O'Rourke) this week saw the following category changes:

Biden vs. Trump state category change: WI has moved from Strong Biden to Weak Biden
Sanders vs. Trump state category change: MI has moved from Strong Sanders to Weak Sanders
Warren vs. Trump state category change: PA has moved from Weak Warren to Weak Trump

Looking at how this impacted the national numbers:

In the "Expected Case" where every candidate wins every state they are ahead in, Pennsylvania moving from slightly Warren to slightly Trump means that Warren now only has a 12 electoral vote margin in this scenario.

Biden's lead dropping below 5% in Wisconsin, and Sander's lead dropping below 5% in Michigan meanwhile, improves Trump's "Best Case" (where he wins not only all of the states where he is ahead but also all the ones where he is behind by less than 5%) against both candidates.

As these five states moved around, several tipping points moved as well.

Sanders vs. Trump tipping point change: Sanders by 1.3% in FL -> Sanders by 1.9% in TX
O'Rourke vs. Trump tipping point change: O'Rourke by 2.1% in TX -> O'Rourke by 1.8% in TX
Biden vs. Trump tipping point change: Biden by 4.9% in VA -> Biden by 4.6% in WI

The tipping point changes already make it clear that this was a mixed week. Some Democrats improved their positions against Trump; some moved in the opposite direction. This mix in the situation exists despite all of the actual category changes being in Trump's direction.

The movement within categories that starts to be shown by the tipping point is something we can see even better if we switch to the probabilistic simulation view:

Dem	8 Sep	15 Sep	𝚫
Biden	99.9%	99.8%	-0.1%
Sanders	95.8%	96.9%	+1.1%
O'Rourke	80.0%	80.8%	+0.8%
Warren	71.1%	69.0%	-2.1%
Buttigieg	67.1%	67.0%	-0.1%
Harris	64.3%	65.7%	+1.4%

There were a lot of mixed results in a lot of states this week. But when you balance it all out in terms of the odds of winning in the Electoral College:

Harris, Sanders, and O'Rourke strengthened against Trump
Warren, Biden, and Buttigieg weakened against Trump

Another way of looking at this is the median margins in the Monte Carlo simulations for each of the candidate combinations:

Unlike the categorization "Expected Case" view, where Harris narrowly loses to Trump, all six Democrats lead Trump in the probabilistic "Median Case."

Warren, Buttigieg, and Harris all lead by 30 or less electoral votes, though. In electoral vote terms, that is a very tight race. Any state with more than 15 electoral votes slipping to the other side of the centerline would switch the outcome.

O'Rourke, Sanders, and Biden, each, in turn, have more of a margin than the candidate before, so additional buffer. They can afford for more to go wrong before they lose.

Now, let's look at each of the five states that got polled this week.

Of the two polls in Texas, one matched other recent surveys and was mostly favorable to the Democrats. The other showed clear Republican leads.

The net impact of the two polls on the averages was that Biden, Sanders, Warren, and Harris continued improving in Texas, while Buttigieg and O'Rourke got a little weaker.

You do get one piece of oddness, though. I use the methodology I described in my Polling Error vs. Final Margin post to translate margins into odds of winning. When I use the straight-up unsmoothed numbers from the 2008 to 2016 elections, there are a few places where the relationship between the polling average and the win odds are not monotonic.

This behavior means that even though O'Rourke's polling average dropped from a 2.1% lead to a 1.8% lead, my computed "odds of winning Texas" for O'Rourke INCREASED from 66.4% to 68.2%.

Now, I could have smoothed the handful of places where this non-monotonic behavior occurs out of existence. But I chose when I first set up the odds based view to use the numbers that came straight out of my analysis of the previous election results without any further manipulation.

Given the historical data and the methodology I used, a 1.8% Democratic lead is indeed slightly more likely to win than a 2.1% Democratic lead. Of course, this does seem a little crazy and is quite possibly just an example of overfitting.

But it isn't a huge difference and occurs at only a few specific margin zones, so I'll leave it be.

We still end up with a situation where three of the six Democrats are leading in Texas though, and another two make it close.

Texas continues to be one of the most important states to watch.

Sanders improved slightly in Pennsylvania.

Biden's lead deteriorated significantly.

Warren lost her lead to Trump.

The poll did not include the others.

Biden, Sanders, and Warren all weaken against Trump in Michigan with this week's update.

The poll did not include the others.

Warren got stronger in Wisconsin.

Biden and Sanders got weaker.

The poll did not include the others.

Biden, Sanders, Warren, and Harris all got weaker in New Hampshire with the latest polling.

The poll did not include Buttigieg or O'Rourke.

And that's it for this week's update.

415.6 days until polls start to close.