Predictions2020 Presidential Democratic Primary - IA Polls
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Source: Suffolk University (url)

CandidatePolitical PartyPollGraphPoll Details
BidenDemocratic18%pie
Poll Date: 2019-10-18
Number Polled: 500
Margin of Error: 4%
Voter Type: Likely
WarrenDemocratic17%
ButtigiegDemocratic13%
SandersDemocratic9%
OtherDemocratic14%
-UndecidedDemocratic29%

Large Undecideds in Iowa Caucus

 By: leip (I-NY) on 2019-10-21 @ 21:36:07

Question:
I’m going to read you a list of some Democratic candidates for president. Please tell me who you would vote for or lean toward at this point. If you know who you would vote for, feel free to stop me at any time.

About this Poll
This survey of 500 likely Iowa Democratic Caucus voters was conducted between October 16 and October 18, 2019, and is based on a statewide random sample drawn from a list of registered Democratic and No Party voters who indicated they were very or somewhat likely to vote in their local Democratic Caucuses for president in four months. Each of Iowa's five areas and demographic information were determined from past contested Democratic presidential caucuses using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely caucus voters. Iowa's 99 counties were grouped into five general regions. The margin of sampling error for results based on the total sample is plus or minus 4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document which follows. All surveys may be subject to other sources of error, including, but not limited to coverage error and measurement error.

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