See who's ahead in our 2020 national polling averages 📈

UPDATED Jul. 6, 2020, at 12:12 AM

Latest Polls

Updated throughout the day.

Who’s ahead in Iowa?

Updating average for each Democratic candidate in 2020 primary polls, accounting for each poll’s quality, sample size and recency

Our average includes all candidates that FiveThirtyEight considers “major.” Candidates with insufficient polling data are not displayed in the averages. State polling averages are adjusted based on national trends, which means candidates’ averages can shift even in the absence of fresh state polls. Read more about the methodology.

Added June 15, 2020

DatesPollsterSampleResultNet result
President: general election
President: general election Iowa
Iowa
Jun 7-10, 2020
674 LV
Jun 7-10, 2020
674LVBiden
43%

Biden

43%

Trump

44%
44%
TrumpTrump+1

Key

A = ADULTS

RV = REGISTERED VOTERS

V = VOTERS

LV = LIKELY VOTERS

June 13, 2020

U.S. Senate
U.S. Senate
IowaIowa
Jun 7-10, 2020
674 LV
Jun 7-10, 2020
674LVGreenfield
46%

Greenfield

46%

Ernst

43%
43%
ErnstGreenfield+3

June 9, 2020

President: general election
President: general election Iowa
Iowa
Jun 6-8, 2020
865 RV
Jun 6-8, 2020
865RVBiden
46%

Biden

46%

Trump

46%
46%
TrumpEven
U.S. Senate
U.S. Senate
IowaIowa
Jun 6-8, 2020
865 RV
Jun 6-8, 2020
865RVGreenfield
48%

Greenfield

48%

Ernst

45%
45%
ErnstGreenfield+3

June 5, 2020

President: general election
President: general election Iowa
Iowa
Jun 3-4, 2020
963 V
Jun 3-4, 2020
963VBiden
47%

Biden

47%

Trump

48%
48%
TrumpTrump+1
U.S. Senate
U.S. Senate
IowaIowa
Jun 3-4, 2020
963 V
Jun 3-4, 2020
963VGreenfield
45%

Greenfield

45%

Ernst

43%
43%
ErnstGreenfield+2

May 14, 2020

U.S. Senate
U.S. Senate
IowaIowa
May 7-9, 2020
632 LV
May 7-9, 2020
632LVMauro
42%

Mauro

42%

Ernst

42%
42%
ErnstEven
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