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2020 Electoral College

Comparison of Best Polled Candidate Combinations in Iowa [6 EV]

Most Recent Poll (middate): 2019-03-23 00:00 UTC

Last Poll Update: 2019-03-25 00:52 UTC

State: History Shown in Graph: 

Switch to National Summary

 

Biden Trump
50.2% 47.7%
 
Biden up by 2.5%
(Weak Biden)

The average currently includes 5 polls spanning the last 10.5 years.

Biden vs Trump Iowa Details

Sanders Trump
49.1% 48.1%
 
Sanders up by 1.0%
(Weak Sanders)

The average currently includes 5 polls spanning the last 10.4 years.

Sanders vs Trump Iowa Details

O'Rourke Trump
48.8% 48.9%
 
Trump up by 0.1%
(Weak Trump)

The average currently includes 5 polls spanning the last 14.5 years.

O'Rourke vs Trump Iowa Details

Warren Trump
47.7% 48.3%
 
Trump up by 0.6%
(Weak Trump)

The average currently includes 5 polls spanning the last 10.4 years.

Warren vs Trump Iowa Details

Booker Trump
49.0% 48.7%
 
Booker up by 0.3%
(Weak Booker)

The average currently includes 5 polls spanning the last 14.5 years.

Booker vs Trump Iowa Details

 

Election Graphs tracks state by state poll averages to estimate Electoral College results, and tracks estimates of the primary delegate races.

 

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The poll average generally uses the last 5 polls (by middate).

If there is tie for the middate of the oldest poll to be included, all polls with that middate are included.

If the result is exactly on the border between categories (0%, 5% or 10% margin) older polls are pulled in one by one until the result is clearly within a category.

When there are not enough actual polls for the poll average, results from prior presidential elections are used to fill in the average.

If a pollster releases multiple results based on the same sample they are weighted so collectively they count as "1 poll".

On state detail pages this is noted by an [N], shading in the listing, and a different color data point in the graph.

 

Full raw data for polls used on this site: pipe delimited text or formatted webpage

 

Analysis for the 2008 and 2012 election cycles can be found here.

 

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