Election 2018 Polls - Dave Leip's Atlas of U.S. Presidential Elections

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Iowa Polls (Aggregate = Slight Greenfield for 3-poll average)

Candidate		Party	Avg.	#Wins	Poll Graph
	Theresa Greenfield	Democratic	49%	3
	Joni Ernst*	Republican	46%	0
	Other	-	2%	0
	Undecided	-	2%	0

Three-Poll Rolling Average
Rolling Average Poll Graph

Date	Poll Source	Spread	Rep	Dem	Ind	Und	M.O.E.	Sample	#C
2020-11-02	Public Policy Polling	D +1	47%	48%	0%	5%	3%	871 L	16
2020-11-01	Civiqs	D +3	47%	50%	1%	1%	4%	853 L	6
2020-11-01	Data 4 Progress	D +4	45%	49%	6%	0%	3%	951 L	18
2020-11-01	Change Research	D +1	47%	48%	2%	2%	3%	1,084 L	2
2020-10-31	Emerson College	D +4	44%	48%	2%	6%	4%	604 L	28
2020-10-29	Selzer & Co	R +4	46%	42%	0%	12%	3%	814 L
2020-10-27	Quinnipiac University	R +2	48%	46%	1%	4%	3%	1,225 L	72
2020-10-24	RABA Research	D +6	45%	51%	0%	6%	4%	693 L	24
2020-10-21	Emerson College	R +1	46%	45%	3%	6%	5%	435 L	32
2020-10-20	Siena Research Institute	R +1	45%	44%	5%	7%	4%	753 L	52
2020-10-19	RMG Research	D +3	43%	46%	3%	7%	4%	800 L	11
2020-10-19	Monmouth University	D +2	47%	49%	0%	4%	4%	501 L	14
2020-10-19	Insider Advantage	D +5	43%	48%	5%	3%	5%	400 L	22
2020-10-11	Data 4 Progress	D +4	43%	47%	3%	6%	3%	822 L	25
2020-10-09	YouGov	D +4	43%	47%	2%	8%	4%	1,035 L	34
2020-10-08	Other Source	R +2	47%	45%	0%	5%	4%	800 L	3
2020-10-06	Civiqs	D +3	46%	49%	3%	3%	4%	756 L	22
2020-10-05	Quinnipiac University	D +5	45%	50%	1%	4%	3%	1,205 L	17
2020-09-26	RABA Research	D +12	39%	51%	0%	10%	4%	780 L	45
2020-09-22	Monmouth University	Tie	47%	47%	1%	4%	5%	402 L	8
2020-08-17	Selzer & Co	D +3	42%	45%	3%	7%	4%	658 L	43
2020-08-14	Public Policy Polling	D +3	45%	48%	0%	8%	4%	729 R	18
2020-08-03	Monmouth University	R +3	48%	45%	3%	3%	5%	401 L	28
2020-08-02	Data 4 Progress	R +2	42%	40%	0%	19%	3%	1,101 L	18
2020-07-30	Other Source	D +4	36%	40%	0%	24%	5%	500 R	11
2020-07-28	Other Source	D +2	47%	49%	0%	3%	3%	800 L	43
2020-06-11	Selzer & Co	D +3	43%	46%	4%	7%	4%	674 L	67
2020-06-08	Civiqs	D +3	45%	48%	3%	3%	4%	865 R	28
2020-06-04	Public Policy Polling	D +2	43%	45%	0%	12%	4%	963 L	26
2020-05-09	RABA Research	Tie	42%	42%	0%	16%	4%	632 L	9
2020-05-01	Public Policy Polling	R +1	43%	42%	0%	14%	4%	1,222 L	34
2019-12-15	Public Policy Polling	R +6	47%	41%	0%	12%	3%	944 R
2019-10-16	Emerson College	R +7	47%	40%	0%	13%	3%	888 L	21
2019-04-19	Public Policy Polling	R +4	48%	44%	0%	8%	4%	780 R

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