2020 United States Senate election in Iowa

2020 United States Senate election in Iowa Democratic Primary
	250px County results; Results by county:; Greenfield—70–80% Greenfield—60–70% Greenfield—50–60% Greenfield—40–50% Greenfield—<40% Franken—<40%
Democratic Senate Nominee before election; Bruce Braley;	Elected Democratic Senate Nominee; Theresa Greenfield;

The 2020 United States Senate election in Iowa will be held on November 3, 2020, to elect a member of the United States Senate to represent the State of Iowa, concurrently with the 2020 U.S. presidential election, as well as other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections. Primaries were held on June 2.^[1]

Republican primary

Candidates

Nominee

Joni Ernst, incumbent U.S. Senator^[2]^[3]^[4]

Withdrawn

Paul Rieck^[5]^[6]

Endorsements

Joni Ernst

Organizations

Maggie's List^[7]

Results

Republican primary results^[8]
Party		Candidate	Votes	%
	Republican	Joni Ernst (incumbent)	226,589	98.64%
	Republican	Write-In	3,132	1.36%
Total votes			229,721	100.0%

Democratic primary

Candidates

Nominee

Theresa Greenfield, businesswoman, candidate for Iowa's 3rd congressional district in 2018^[9]

Eliminated in primary

Michael T. Franken, retired U.S. Navy admiral and former aide to U.S. Senator Ted Kennedy^[10]
Kimberly Graham, child welfare attorney^[11]^[12]
Eddie Mauro, businessman, teacher, candidate for Iowa's 3rd congressional district in 2018^[13]

Withdrawn

Cal Woods, journalist and U.S. Navy veteran^[14]^[15]^[16] (endorsed Michael T. Franken) (remained on ballot)

Declined

Cindy Axne, incumbent U.S. Representative for Iowa's 3rd congressional district (running for reelection, endorsed Greenfield)^[17]
Chet Culver, former Governor of Iowa^[18]
Deirdre DeJear, nominee for Secretary of State of Iowa in 2018^[19]
Abby Finkenauer, incumbent U.S. Representative for Iowa's 1st congressional district (running for reelection, endorsed Greenfield)^[20]^[21]
Amber Gustafson, candidate for the Iowa Senate in 2018 (endorsed Greenfield)^[22]
Rita Hart, former state senator and nominee for Lieutenant Governor of Iowa in 2018 (running in Iowa's 2nd congressional district)^[4]^[23]^[24]
Rob Hogg, state senator^[4]^[23]
Liz Mathis, state senator^[25]
Rob Sand, Iowa State Auditor^[4]^[26]
J.D. Scholten, nominee for Iowa's 4th congressional district in 2018 (running in Iowa's 4th congressional district)^[27]
Tom Vilsack, former Governor of Iowa and former U.S. Secretary of Agriculture^[28]
Stacey Walker, Linn County supervisor (endorsed Graham)^[29]^[30]
Steve Warnstadt, former state senator and intelligence officer in the Iowa Army National Guard^[4]^[23]

Debates

Host network	Date	Link(s)	Participants
Host network	Date	Link(s)	Theresa Greenfield	Michael D. Franken	Kimberly Graham	Eddie Mauro
Iowa PBS	May 18, 2020	^[31]	Present	Present	Present	Present

Endorsements

Michael Franken

Federal officials

Chuck Hagel, former U.S. Secretary of Defense (2013-2015) and U.S. Senator from Nebraska (1997-2009)^[32] (Republican)

Kimberly Graham

Individuals

Paula Jean Swearengin, Democratic nominee in 2020 West Virginia U.S. Senate race^[33]

Organizations

Association of Professional Flight Attendants^[33]
Brand New Congress^[34]
Sunrise Movement Cedar Rapids Chapter^[35]
Sunrise Movement Dubuque Chapter^[33]
Sunrise Movement University of Iowa Chapter^[33]

Theresa Greenfield

Federal officials

Sherrod Brown, U.S. Senator from Ohio^[36]
Abby Finkenauer, U.S. Representative (IA-01)^[21]
Gabby Giffords, former U.S. Representative (AZ-08) (2007-2012)^[37]
Dave Loebsack, U.S. Representative (IA-02)^[38]

State officials

Sally Pederson, former Lieutenant Governor (1997-2007)^[37]
Pam Jochum, state senator and former Iowa Senate president (2013-2017)^[37]
Janet Petersen, state senator and Senate Minority Leader^[37]
Zach Wahls, state senator^[37]
Jim Lykam, state senator^[37]
Tony Bisignano, state senator^[37]
Amanda Ragan, state senator^[37]
Joseph Bolkcom, state senator^[37]
Marti Anderson, state representative^[37]
Jo Oldson, state representative^[37]
Sharon Steckman, state representative^[37]
Monica Kurth, state representative^[37]
Mary Mascher, state representative^[37]
Cindy Winckler, state representative^[37]
Bruce Hunter, state representative^[37]
John Forbes, state representative^[37]
Bob Kressig, state representative^[37]
Kristin Sunde, state representative^[37]
Robert Dvorsky, former state senator (1995-2019) and state representative (1987-1995)^[37]
Joe Riding, former state representative (2013-2015)^[37]
Ro Foege, former state representative (1996-2008)^[37]

Individuals

Jon Bauman, Social Security Works PAC president and former Sha Na Na member (1970-1983)^[37]
Andy McGuire, former Iowa Democratic Party chair^[37]
Christie Vilsack, former Iowa First Lady (1997-2007)^[37]

Unions

American Federation of State, County and Municipal Employees Council 61^[37]
United Food and Commercial Workers Local 431^[37]
International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers Local 89, 67, 111, 577, 21^[37]
International Brotherhood of Teamsters Local 238^[37]
International Brotherhood of Electrical Workers Iowa State Conference^[37]
American Federation of Government Employees^[37]

Organizations

Polling

Poll source	Date(s) administered	Sample size^{[lower-alpha 1]}	Margin of error	Michael Franken	Kimberly Graham	Theresa Greenfield	Eddie Mauro	Undecided
Public Policy Polling	May 5–6, 2020	849 (V)	–	12%	4%	43%	4%	36%
Emerson College	October 13–16, 2019	317 (LV)	± 5.5%	6%	4%	11%	6%	74%

Results

Democratic primary results^[8]
Party		Candidate	Votes	%
	Democratic	Theresa Greenfield	132,001	47.71%
	Democratic	Michael T. Franken	68,851	24.88%
	Democratic	Kimberly Graham	41,554	15.02%
	Democratic	Eddie Mauro	30,400	10.99%
	Democratic	Cal Woods (withdrawn)	3,372	1.21%
	Democratic	Write-In	514	0.19%
Total votes			276,692	100.0%

Other candidates

Libertarian Party

Nominee

Rick Stewart, Libertarian nominee for the 2018 Iowa Secretary of Agriculture election and independent candidate for the 2014 United States Senate election in Iowa^[48]

Independents

Declared

Suzanne Herzog, economist and former ER nurse^[49]

General election

Predictions

Source	Ranking	As of
The Cook Political Report^[50]	Tossup	August 17, 2020
Inside Elections^[51]	Tossup	September 18, 2020
Sabato's Crystal Ball^[52]	Tossup	August 5, 2020
Daily Kos^[53]	Tossup	August 31, 2020
Politico^[54]	Tossup	September 9, 2020
RCP^[55]	Tossup	September 17, 2020
Niskanen^[56]	Tossup	September 15, 2020
DDHQ^[57]	Tossup	September 16, 2020
538^[58]	Tossup	September 18, 2020

Endorsements

Joni Ernst (R)

Organizations

Theresa Greenfield (D)

Federal officials

Barack Obama, 44th President of the United States^[61]
Sherrod Brown, U.S. Senator from Ohio^[36]
Abby Finkenauer, U.S. Representative (IA-01)^[21]
Gabby Giffords, former U.S. Representative (AZ-08)^[37]
Kirsten Gillibrand, United States Senator from New York^[62]
Dave Loebsack, U.S. Representative (IA-02)^[38]

State and local officials

Sally Pederson, former Lieutenant Governor of Iowa^[37]
Pam Jochum, state senator and former Iowa Senate president (2013-2017) and state representative (1993-2009)^[37]
Janet Petersen, state senator and Senate Minority Leader^[37]
Zach Wahls, state senator^[37]
Jim Lykam, state senator^[37]
Tony Bisignano, state senator^[37]
Amanda Ragan, state senator^[37]
Joseph Bolkcom, state senator^[37]
Marti Anderson, state representative^[37]
Jo Oldson, state representative^[37]
Sharon Steckman, state representative^[37]
Monica Kurth, state representative^[37]
Mary Mascher, state representative^[37]
Cindy Winckler, state representative^[37]
Bruce Hunter, state representative^[37]
John Forbes, state representative^[37]
Bob Kressig, state representative^[37]
Kristin Sunde, state representative^[37]
Robert Dvorsky, former state senator^[37]
Joe Riding, former state representative^[37]
Ro Foege, former state representative^[37]

Individuals

Jon Bauman, Social Security Works PAC president and former Sha Na Na member^[37]
Andy McGuire, former Iowa Democratic Party chair^[37]
Christie Vilsack, former Iowa First Lady (1999-2007)^[37]

Unions

American Federation of State, County and Municipal Employees Council 61^[37]
United Food and Commercial Workers Local 431^[37]
International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers Local 89, 67, 111, 577, 21^[37]
International Brotherhood of Teamsters Local 238^[37]
International Brotherhood of Electrical Workers Iowa State Conference^[37]
American Federation of Government Employees^[37]

Organizations

Polling

Aggregate polling

Theresa Greenfield vs. Joni Ernst
Source of poll aggregation	Dates administered	Dates updated	Theresa Greenfield	Joni Ernst	Other/Undecided^{[lower-alpha 2]}	Margin
Real Clear Politics	April 30, 2020 - September 17, 2020	September 17, 2020	44.7%	44.3%		Greenfield +0.4
270 to Win	May 4, 2020 - September 19, 2020	September 19, 2020	45.0%	46.0%	0%	Ernst +1.0

Poll source	Date(s) administered	Sample size^{[lower-alpha 1]}	Margin of error	Joni Ernst (R)	Theresa Greenfield (D)	Other/ Undecided
Monmouth University	September 18–22, 2020	402 (RV)	± 4.9%	47%	47%	5%^{[lower-alpha 3]}
		402 (LV)^{[lower-alpha 4]}		46%	49%	5%^{[lower-alpha 5]}
		402 (LV)^{[lower-alpha 6]}		47%	48%	5%^{[lower-alpha 7]}
Siena College/NYT Upshot	September 16–22, 2020	501 (LV)	± 4.99%	40%	42%	19%^{[lower-alpha 8]}
Selzer/Des Moines Register	September 14–17, 2020	658 (LV)	± 3.8%	42%	45%	12%^{[lower-alpha 9]}
Fabrizio Ward/Hart Research Associates^{[upper-alpha 1]}	August 30 – September 5, 2020	800 (LV)	± < 4%	50%	45%	–
Public Policy Polling	August 13–14, 2020	729 (V)	± 4.1%	45%	48%	8%^{[lower-alpha 10]}
Monmouth University	July 30 – August 3, 2020	401 (RV)	± 4.9%	48%	45%	6%^{[lower-alpha 11]}
		401 (LV)^{[lower-alpha 4]}		48%	47%	6%^{[lower-alpha 12]}
		401 (LV)^{[lower-alpha 6]}		48%	47%	5%^{[lower-alpha 13]}
Data for Progress	July 24 – August 2, 2020	1,101 (LV)	± 3.2%	43%	45%	11%^{[lower-alpha 14]}
RMG Research	July 27–30, 2020	500 (RV)	± 4.5%	36%	40%	24%^{[lower-alpha 15]}
Spry Strategies (R)^{[upper-alpha 2]}	July 11–16, 2020	701 (LV)	± 3.7%	43%	45%	12%^{[lower-alpha 16]}
GQR Research (D)^{[upper-alpha 3]}	June 23–28, 2020	800 (LV)	± 3.5%	47%	49%	4%
Selzer/Des Moines Register	June 7–10, 2020	674 (LV)	± 3.8%	43%	46%	11%
Civiqs/Daily Kos	June 6–8, 2020	865 (RV)	± 3.8%	45%	48%	6%
Public Policy Polling (D)^{[upper-alpha 4]}	June 3–4, 2020	963 (V)	± 3.4%	43%	45%	12%
Public Policy Polling	April 30 – May 1, 2020	1,222 (V)	± 2.8%	43%	42%	14%
Public Policy Polling (D)^{[upper-alpha 3]}	December 13–15, 2019	944 (V)	± 3.4%	47%	41%	12%
Emerson College	October 13–16, 2019	888 (RV)	± 3.2%	47%	40%	14%
Lake Research Partners (D)^{[upper-alpha 5]}	April 24–29, 2019	500 (LV)	± 4.4%	56%	34%	–

Hypothetical polling

with Eddie Mauro

Poll source	Date(s) administered	Sample size^{[lower-alpha 1]}	Margin of error	Joni Ernst (R)	Eddie Mauro (D)	Undecided
RABA Research/Eddie Mauro^{[lower-alpha 17]}	May 7–9, 2020	632 (LV)	± 3.9%	42%	42%	–
Lake Research Partners (D)^{[upper-alpha 5]}	April 24–29, 2019	500 (LV)	± 4.4%	58%^{[lower-alpha 18]}	33%	–
Lake Research Partners (D)^{[upper-alpha 5]}	April 24–29, 2019	500 (LV)	± 4.4%	49%^{[lower-alpha 19]}	44%	–

with Joni Ernst and generic Democrat

Poll source	Date(s) administered	Sample size^{[lower-alpha 1]}	Margin of error	Joni Ernst (R)	Generic Democrat	Undecided
Public Policy Polling	April 29–30, 2019	780 (V)	± 3.5%	48%	44%	–
Public Policy Polling (D)^{[upper-alpha 6]}	June 30 – July 1, 2017	784 (V)	± 3.6%	48%	41%	12%

with Joni Ernst and Generic Opponent

Poll source	Date(s) administered	Sample size^{[lower-alpha 1]}	Margin of error	Joni Ernst (R)	Generic Opponent	Other	Undecided
Des Moines Register/Selzer & Co.	March 2–5, 2020	667 (LV)	± 3.8%	41%	31%	3%^{[lower-alpha 20]}	26%^{[lower-alpha 21]}

with generic Republican and generic Democrat

Poll source	Date(s) administered	Sample size^{[lower-alpha 1]}	Margin of error	Generic Republican	Generic Democrat	Undecided
Lake Research Partners (D)^{[upper-alpha 5]}	April 24–29, 2019	500 (LV)	± 4.4%	45%	41%	–

Results

United States Senate election in Iowa, 2020
Party		Candidate	%	±%
	Republican	Joni Ernst (incumbent)		{{{change}}}
	Democratic	Theresa Greenfield		{{{change}}}
	Libertarian	Rick Stewart		{{{change}}}
	Independent	Suzanne Herzog		{{{change}}}
Total votes			100.0%

Notes

Partisan clients

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Voter samples

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References

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External links

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Official campaign websites

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↑ https://www.cwfpac.com/endorsedcandidates
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v t e (2019 ←) 2020 United States elections (→ 2021)
U.S. President	Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming
U.S. Senate	Alabama Alaska Arizona (special) Arkansas Colorado Delaware District of Columbia (shadow) Georgia Georgia (special) Idaho Illinois Iowa Kansas Kentucky Louisiana Maine Massachusetts Michigan Minnesota Mississippi Montana Nebraska New Hampshire New Jersey New Mexico North Carolina Oklahoma Oregon Rhode Island South Carolina South Dakota Tennessee Texas Virginia West Virginia Wyoming
U.S. House	Alabama Alaska American Samoa Arizona Arkansas California 25th sp Colorado Connecticut Delaware District of Columbia Florida Georgia 5th sp Guam Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland 7th sp Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York 27th sp North Carolina 11th North Dakota Northern Mariana Islands Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia U.S. Virgin Islands Washington West Virginia Wisconsin 7th sp Wyoming
Governors	American Samoa Delaware Indiana Missouri Montana New Hampshire North Carolina North Dakota Puerto Rico Utah Vermont Washington West Virginia
Mayors	Baltimore, MD Clearwater, FL El Paso, TX Honolulu, HI Miami-Dade County, FL Milwaukee, WI Phoenix, AZ Portland, OR San Diego, CA Wilmington, DE Winston-Salem, NC
States and territories (legislative)	Alabama Alaska American Samoa Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas U.S. Virgin Islands Utah Vermont Virginia Washington Washington, D.C. West Virginia Wisconsin Wyoming
Related	Chinese interference George Soros interference

v t e State of Iowa
Des Moines (capital)
Topics	Index Geology Environment Archaeology Native Americans History Historic Places Iowans Visitor attractions State parks Delegations Demographics Governors Legislature Flag Seal Sports Area codes
Society	Culture Crime Demographics Economy Education Politics
Regions	Coteau des Prairies Des Moines metropolitan area Dissected Till Plains Driftless Area Great River Road Honey Lands Iowa Great Lakes Loess Hills Omaha–Council Bluffs metropolitan area Quad Cities Siouxland
Largest cities	Ames Ankeny Bettendorf Burlington Cedar Falls Cedar Rapids Clinton Council Bluffs Davenport Des Moines Dubuque Fort Dodge Iowa City Marion Marshalltown Mason City Muscatine Ottumwa Sioux City Urbandale Waterloo West Des Moines
Counties	Adair Adams Allamakee Appanoose Audubon Benton Black Hawk Boone Bremer Buchanan Buena Vista Butler Calhoun Carroll Cass Cedar Cerro Gordo Cherokee Chickasaw Clarke Clay Clayton Clinton Crawford Dallas Davis Decatur Delaware Des Moines Dickinson Dubuque Emmet Fayette Floyd Franklin Fremont Greene Grundy Guthrie Hamilton Hancock Hardin Harrison Henry Howard Humboldt Ida Iowa Jackson Jasper Jefferson Johnson Jones Keokuk Kossuth Lee Linn Louisa Lucas Lyon Madison Mahaska Marion Marshall Mills Mitchell Monona Monroe Montgomery Muscatine O'Brien Osceola Page Palo Alto Plymouth Pocahontas Polk Pottawattamie Poweshiek Ringgold Sac Scott Shelby Sioux Story Tama Taylor Union Van Buren Wapello Warren Washington Wayne Webster Winnebago Winneshiek Woodbury Worth Wright

2020 United States Senate election in Iowa

Contents

Republican primary

Candidates

Nominee

Withdrawn

Endorsements

Results

Democratic primary

Candidates

Nominee

Eliminated in primary

Withdrawn

Declined

Debates

Endorsements

Polling

Results

Other candidates

Libertarian Party

Nominee

Independents

Declared

General election

Predictions

Endorsements

Polling

Aggregate polling

Results

See also

Notes

References

External links

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