2020 United States Senate election in Colorado

The 2020 United States Senate Election in Colorado will be held on November 3, 2020, to elect a member of the United States Senate to represent the State of Colorado, concurrently with the 2020 U.S. presidential election, as well as other elections to the United States Senate, elections to the United States House of Representatives and various state and local elections.

2020 United States Senate election in Colorado

November 3, 2020

Nominee Cory Gardner John Hickenlooper Party Republican Democratic

Incumbent U.S. senator Cory Gardner Republican

Under Colorado law, the filing deadline for U.S. Senate candidates was March 17, 2020, the third Tuesday in March of the election year; the primary election occurred on June 30.[1][2] Incumbent Republican Senator Cory Gardner is running for reelection to a second term, and will face Democratic former Governor John Hickenlooper in the general election. Gardner was unopposed in the Republican primary, and Hickenlooper defeated former State House Speaker Andrew Romanoff in the Democratic primary. Gardner is one of two Republican U.S. Senators facing reelection in 2020 in a state President Donald Trump lost in 2016, the other being Susan Collins from Maine.[3]

Background

Cory Gardner was elected to the U.S. Senate in 2014, narrowly defeating incumbent Democratic Senator Mark Udall in a very successful election year for Republicans. Gardner is widely considered vulnerable in this election cycle due to Colorado's Democratic trend in recent cycles and his support for President Donald Trump.[4] The seat is expected to be highly competitive and is widely considered the most likely Republican-held seat to flip Democratic. The Democratic nominee, former governor John Hickenlooper, has a double-digit lead over Gardner in the polls.[5]

Various minor scandals in the days leading up to the June 30 Democratic primary sparked speculation that Romanoff might win, but Hickenlooper had an advantage in name recognition, and negative attacks by Romanoff reportedly led many state Democrats and voters to sour on him.[6]

Republican primary

2020 United States Senate election in Colorado Republican Primary

June 30, 2020

Candidate Cory Gardner Popular vote 548,859 Percentage 100.00%

Republican Senate Nominee before election Cory Gardner Elected Republican Senate Nominee Cory Gardner

Candidates

Nominee

• Cory Gardner, incumbent U.S. Senator[7]

Withdrawn

• Margot Dupre, estate agent[8][9]
• Gail Prentice, veteran and business owner[10][11]

Endorsements

Cory Gardner
U.S. Presidents George W. Bush, 43rd President of the United States[12] U.S. Executive Branch Officials John Bolton, former United States National Security Advisor[13] Nikki Haley, former United States Ambassador to the United Nations[14] Organizations

Results

Republican primary results [15]

Party		Candidate	Votes	%
	Republican	Cory Gardner (incumbent)	548,859	100.00%
Total votes			548,859	100.00%

Democratic primary

2020 United States Senate election in Colorado Democratic Primary

June 30, 2020

Candidate John Hickenlooper Andrew Romanoff Popular vote 585,826 412,955 Percentage 58.65% 41.35%

County results Hickenlooper   50–60%   60–70%   70–80% Romanoff   50–60%

Democratic Senate Nominee before election Mark Udall Elected Democratic Senate Nominee John Hickenlooper

Candidates

Nominee

• John Hickenlooper, former Governor of Colorado and former candidate for President of the United States in 2020[16]

Eliminated in primary

• Andrew Romanoff, former Speaker of the Colorado House of Representatives, candidate for U.S. Senate in 2010, and nominee for Colorado's 6th congressional district in 2014[17][18]

Withdrawn

• Dan Baer, former executive director of the Colorado Department of Higher Education and former United States Ambassador to the Organization for Security and Cooperation in Europe[19] (endorsed John Hickenlooper)
• Derrick Blanton[20]
• Marcos Boyington, software engineer[21]
• Diana Bray, psychologist and climate activist[22] (endorsed Andrew Romanoff)[23]
• Denise Burgess, businesswoman and Denver Metro Chamber of Commerce board member[24]
• Ellen Burnes, Colorado State University professor and former chair of the Boulder County Democratic Party[25]
• Lorena Garcia, community organizer[lower-alpha 1][26]
• David Goldfischer, associate professor at the Korbel School for International Studies at the University of Denver and national security advisor[27]
• Mike Johnston, former state senator and candidate for Governor of Colorado in 2018[28]
• Danielle Kombo, medical recruiter and businesswoman[29][30] (endorsed Stephany Rose Spaulding)
• Dustin Leitzel, pharmacist[31][32]
• Alice Madden, former majority leader of the Colorado House of Representatives[33]
• Christopher Hawkins Critter Milton, 2020 Unity Party nominee for Colorado's 3rd congressional district[34]
• Keith Pottratz, technician and veteran[35][36] (endorsed Lorena Garcia)
• Stephany Rose Spaulding, professor at University of Colorado Colorado Springs and nominee for Colorado's 5th congressional district in 2018[37] (endorsed Lorena Garcia)[38]
• Erik Underwood, entrepreneur and candidate for Governor of Colorado in 2018[39]
• John F. Walsh, former U.S. Attorney for the District of Colorado[40] (endorsed John Hickenlooper)
• Michelle Ferrigno Warren, nonprofit leader, immigration advocate, first time candidate[lower-alpha 2][41]
• Angela Williams, state senator (running for re-election)[42]
• Trish Zornio, biomedical scientist[17][43] (endorsed John Hickenlooper)

Declined

• Diana DeGette, incumbent U.S. Representative (running for re-election)[44]
• Kerry Donovan, state senator[45] (endorsed John Hickenlooper)
• Crisanta Duran, former speaker of the Colorado House of Representatives (ran for Colorado's 1st congressional district,[46] then withdrew)
• Stan Garnett, former Boulder County District Attorney[47]
• Jena Griswold, Colorado Secretary of State[48]
• Cary Kennedy, former Colorado State Treasurer[49]
• Joe Neguse, incumbent U.S. Representative for Colorado's 2nd congressional district (running for re-election)[17][50][51][52]
• Ed Perlmutter, incumbent U.S. Representative for Colorado's 7th congressional district[21] (endorsed John Hickenlooper)
• Joe Salazar, former state representative[49]

Debates

Host network	Date	Link(s)	Participants
			John Hickenlooper	Andrew Romanoff
9NEWS	June 9, 2020	[53]	Present	Present
CBS4 PBS 12 Colorado Sun	June 10, 2020	[54][55]	Present	Present
The Denver Post	June 16, 2020	[56]	Present	Present

Endorsements

John Hickenlooper

Former US Executive Branch Officials Ken Salazar, former U.S. Interior Secretary and former U.S. senator (CO)[57] Federal Officials Ed Perlmutter, U.S. Representative (CO)[58] State officials Brianna Buentello, State Senator[59] Leroy Garcia, State Senator[60] Dylan Roberts, State Representative[59] Unions Colorado Professional Fire Fighters[61] Pipefitters Local 208[62] Southwest Regional Council of Carpenters[63] Newspapers The Durango Herald[64] Organizations Congressional Black Caucus PAC[65] Council for a Livable World[66] Democratic Majority for Israel PAC[67] Feminist Majority PAC[68] Giffords[69] Let America Vote[61] NARAL Pro-Choice America[70] National Committee to Preserve Social Security and Medicare[71]

Andrew Romanoff

State officials Peter Groff, former Colorado State Senate President and State Representative[72] Polly Baca, former State Senator and State Representative[72] Individuals Bill McKibben, environmentalist, lecturer, and founder of 350.org[73] Marianne Williamson, author, former candidate for California's 33rd congressional district, former 2020 presidential candidate[74] Unions United Food and Commercial Workers Local 7[75] Newspapers Sentinel Colorado[76] Organizations Arvadans for Progressive Action[72] Climate Hawks Vote[77] Food & Water Action[78] Indivisible Colorado Environment[72] Progressive Democrats of America[79] Sunrise Movement[80]

Polling

Poll source	Date(s) administered	Sample size[lower-alpha 3]	Margin of error	Jena Griswold	John Hickenlooper	Mike Johnston	Andrew Romanoff	Other / Undecided
SurveyUSA/KUSA-TV/ColoradoPolitics	June 19–24, 2020	575 (LV)	± 6.0%	–	58%	–	28%	15%
Myers Research and Strategic Services[upper-alpha 1]	June 16–17, 2020	500 (LV)	± 4.4%	–	51%	–	39%	–
Unspecified polling firm[upper-alpha 1]	October 2019	– (LV)[lower-alpha 4]	–	–	68%	–	19%	–
	September 3, 2019	Johnston withdraws from the race
Public Policy Polling (D)[upper-alpha 2]	August 28–29, 2019	509 (LV)	–	–	60%[lower-alpha 5]	3%	9%	27%[lower-alpha 6]
				–[lower-alpha 7]	66%	–	17%	17%[lower-alpha 8]
	August 21, 2019	Hickenlooper announces his candidacy
	August 9, 2019	Griswold announces that she will not run
Garin-Hart-Yang Research Group	July 25–28, 2019	600 (LV)	–	6%	61%	10%	8%	15%[lower-alpha 9]
Public Policy Polling (D)	July 12–14, 2019	561 (LV)	–	4%	44%	3%	12%	38%[lower-alpha 10]

Hypothetical polling

with Dan Baer and John Hickenlooper Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error Dan Baer John Hickenlooper Undecided Public Policy Polling (D)[upper-alpha 2] August 28–29, 2019 509 (LV) – 11% 72% 17% with John Hickenlooper and Mike Johnston Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error John Hickenlooper Mike Johnston Undecided Public Policy Polling (D)[upper-alpha 2] August 28–29, 2019 509 (LV) – 69% 14% 18% with John Hickenlooper and Alice Madden Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error John Hickenlooper Alice Madden Undecided Public Policy Polling (D)[upper-alpha 2] August 28–29, 2019 509 (LV) – 69% 14% 17% with John Hickenlooper and Angela Williams Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error John Hickenlooper Angela Williams Undecided Public Policy Polling (D)[upper-alpha 2] August 28–29, 2019 509 (LV) – 70% 11% 18%

Caucus

On March 7, 2020, the Colorado Democratic Party held a non-binding Senate primary preference poll at its caucus sites. Attendees could choose delegates to county and then state conventions. If a candidate received at least 30% of the delegates at the state convention they would be placed on the ballot. Some candidates were not listed because they instead chose to attempt to collect signatures to reach the ballot. Candidates needed 1,500 signatures from each congressional district. Hickenlooper and Underwood chose to do both. Romanoff collected the needed signatures as of March 8, 2020.[81][82]

Caucus results

Romanoff was the only candidate to get more than 30% in the initial precinct caucuses. Hickenlooper withdrew from the assembly process soon afterward, choosing to qualify for the ballot exclusively by petition. Ballot access for assembly candidates will be decided at the state assembly. Caucus winners do not always receive the party's nomination; Romanoff won them in the 2010 Democratic primary for Colorado's Senate race, but Michael Bennet won the party's nomination that year.[83]

The aggregate results of the various precinct caucuses on March 7, 2020, were:[84]

Candidate	Total Raw Votes	Percentage of Vote Won (%)
Andrew Romanoff	8,629	54.98
John Hickenlooper	4,761	30.34
Trish Zornio	976	6.21
Stephany Rose Spaulding	771	4.91
Uncommitted	520	3.31
Erik Underwood	35	0.22

Results

Democratic primary results[85]

Party		Candidate	Votes	%
	Democratic	John Hickenlooper	585,826	58.65%
	Democratic	Andrew Romanoff	412,955	41.35%
Total votes			998,781	100.00%

Other candidates

Green Party

Nominee

• Bruce Lohmiller (as a write-in candidate)[86]

Libertarian primary

2020 United States Senate election in Colorado Libertarian Primary

June 30, 2020

Candidate Raymon Doane Gaylon Kent Popular vote 3,477 2,094 Percentage 62.41% 37.59%

Libertarian Senate Nominee before election Gaylon Kent Elected Libertarian Senate Nominee Raymon Doane

Nominee

• Raymon Doane, Libertarian nominee for Colorado's 1st congressional district in 2018[87]

Eliminated in primary

• Gaylon Kent, author and perennial candidate[88]

Results

Libertarian primary results [89]

Party		Candidate	Votes	%
	Libertarian	Raymon Doane	3,477	62.41%
	Libertarian	Gaylon Kent	2,094	37.59%
Total votes			5,571	100.00%

Unity Party

Nominee

• Stephan "Chairman Seku" Evans, former candidate for Mayor of Denver[90]

Eliminated at Unity Party convention

• Joshua Rodriguez[91]

Withdrawn

• Gary Swing, perennial candidate[92][90]

Others

Declared

• Dan Doyle (Approval Voting Party)[86]
• Michael Sanchez (Independent) (as a write-in candidate)[86]
• Danny Skelly, Small Business Owner (Independent) (as a write-in candidate)[86]

Withdrawn

• Veronique Bellamy, former candidate for RTD board (Socialist Party)[90][93][94]
• Joseph "Joey" Camp, performance artist (Independent)[95][90][86]
• Lisa Garcia (Independent)[96][86]
• Christopher K. Springer (Independent)[97][86]
• Donald George Willoughby (Independent)[97][86]
• Marti Wolf (Independent)[97]

General election

Predictions

Source	Ranking	As of
The Cook Political Report[98]	Tossup	July 23, 2020
Inside Elections[99]	Tilt D (flip)	July 10, 2020
Sabato's Crystal Ball[100]	Lean D (flip)	August 5, 2020
Daily Kos[101]	Lean D (flip)	July 22, 2020
Politico[102]	Tossup	July 6, 2020
RCP[103]	Tossup	August 6, 2020
Niskanen[104]	Likely D (flip)	July 26, 2020
270towin[105]	Lean D (flip)	August 6, 2020

Endorsements

Cory Gardner (R)

U.S. Presidents George W. Bush, 43rd President of the United States[12] Federal Officials John Bolton, former United States National Security Advisor[13] Nikki Haley, former United States Ambassador to the United Nations[14] Gary L. Bauer, former United States Under Secretary of Education, Assistant to the President for Policy Development, United States Deputy Under Secretary of Education for Planning and Budget, and Member of the United States Commission on International Religious Freedom[106] Organizations Campaign for Working Families[106] Citizens United Political Victory Fund[107] ClearPath Action Fund[108] Huck PAC[109] Americans for Prosperity Action[110] Other Individuals Charles Koch[111]

John Hickenlooper (D)

Former US Executive Branch Officials Ken Salazar, former U.S. Interior Secretary and former U.S. senator (CO)[57] US Federal Officials Kamala Harris, United States Senator from California (2017-present), 2020 vice presidential nominee[112] Amy Klobuchar, Senator for Minnesota (2007–present), former 2020 presidential candidate.[113] Ed Perlmutter, U.S. Representative (CO)[58] Elizabeth Warren, United States Senator from Massachusetts (2012-present), former 2020 presidential candidate[114] State Executives Roy Romer, former Governor of Colorado[115] State Officials Brianna Buentello, State Senator[59] Leroy Garcia, State Senator[60] Dylan Roberts, State Representative[59] Unions Colorado Professional Fire Fighters[61] Pipefitters Local 208[62] Southwest Regional Council of Carpenters[63] Newspapers The Durango Herald[64] Organizations Bend the Arc: Jewish Action[116] Congressional Black Caucus PAC[65] Council for a Livable World[66] Democratic Majority for Israel PAC[67] Feminist Majority PAC[68] Giffords[69] J Street[117] Joint Action Committee for Political Affairs[118] Let America Vote[61] NARAL Pro-Choice America[70] National Committee to Preserve Social Security and Medicare[71] Sierra Club[119]

Polling

Poll source	Date(s) administered	Sample size[lower-alpha 3]	Margin of error	Cory Gardner (R)	John Hickenlooper (D)	Other / Undecided
Morning Consult	July 17–26, 2020	616	± 4.0%	42%	48%	11%
Public Policy Polling (D)[upper-alpha 3]	June 29–30, 2020	840	± 3.4%	40%	51%	9%[lower-alpha 11]
Keating Research (D)	May 1–3, 2020	600	± 4.0%	36%	54%	10%[lower-alpha 12]
Montana State University Bozeman	April 10–19, 2020	379	± 4.4%	31%	48%	21%[lower-alpha 13]
Keating Research (D)	October 10–14, 2019	500	± 4.4%	42%	53%	5%
Emerson College	August 16–19, 2019	1,000	± 3.0%	40%	53%	8%
Global Strategy Group (D)[upper-alpha 4]	August 13–14, 2019	617	± 3.9%	39%	49%	13%
Public Policy Polling (D)[upper-alpha 2]	August 8–11, 2019	739	± 3.6%	38%	51%	12%

Hypothetical polling

with generic Democrat Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error Cory Gardner (R) Generic Democrat Other / Undecided Global Strategy Group (D)[upper-alpha 4] August 13–14, 2019 617 ± 3.9% 38% 48% 14% Global Strategy Group January 31 – February 4, 2019 818 ± 3.4% 40% 51% 9% DFM Research January 2–5, 2019 550 ± 4.2% 38% 46% 16% Change Research (D)[upper-alpha 5] December 2–4, 2018 540 ± 4.2% 41% 47% – Public Policy Polling (D)[upper-alpha 6] August 2–3, 2017 628 ± 3.8% 41% 46% 13% Public Policy Polling (D)[upper-alpha 7] June 30 – July 1, 2017 870 ± 3.6% 39% 53% 8% on whether Cory Gardner deserves to be re-elected Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error Yes No Other / Undecided Fabrizio Ward/AARP July 29–31, 2019 600 (LV) ± 4.0% 32% 50% 18% with Generic Republican and Generic Democrat Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error Generic Republican Generic Democrat Other / Undecided Fabrizio Ward/AARP July 29–31, 2019 600 (LV) ± 4.0% 42% 44% 14%[lower-alpha 14]

Former candidates
with Mike Johnston Poll source Date(s) administered Sample size[lower-alpha 3] Margin of error Cory Gardner (R) Mike Johnston (D) Other Undecided Global Strategy Group (D)[upper-alpha 4] August 13–14, 2019 617 ± 3.9% 39% 50% – 11% Fabrizio Ward/AARP July 29–31, 2019 600 (LV) ± 4.0% 45% 39% 2%[lower-alpha 15] 14%

Results

United States Senate election in Colorado, 2020

Party		Candidate	Votes	%	±
	Republican	Cory Gardner (incumbent)
	Democratic	John Hickenlooper
	Libertarian	Raymon Doane
	Unity	Stephen Evans
	Approval Voting	Dan Doyle
	Write-in
Total votes				100.00%

See also

• 2020 United States Senate elections

Notes

Partisan clients

1. Poll sponsored by Romanoff's campaign
2. Poll sponsored by 314 Action
3. End Citizens United supports candidates who oppose the landmark Citizens United Supreme Court ruling
4. Poll conducted for Mike Johnston
5. Poll sponsored by ProgressNow Colorado
6. Poll sponsored by Our Lives on the Line
7. Poll sponsored by Save My Care, a pro-Affordable Care Act organisation

Voter samples

1. A judge ruled that Lorena Garcia could appear on the ballot despite only getting 50% of the signatures needed to qualify, citing how signatures can't be collected due to COVID-19. The Colorado Supreme Court overruled the ruling after an appeal from Colorado's Secretary of State.
2. A judge ruled that Michelle Ferrigno Warren could appear on the ballot despite only getting 50% of the signatures needed to qualify, citing how signatures can't be collected due to COVID-19. The Colorado Supreme Court overruled the ruling after an appeal from Colorado's Secretary of State.
3. Key:
   A – all adults
   RV – registered voters
   LV – likely voters
   V – unclear
4. Not yet released
5. Standard VI response
6. Undecided with 16%; Baer, Madden and Williams with 2%; Walsh with 1%; "someone else" with 4%
7. With only Hickenlooper and Romanoff as candidates
8. Undecided with 17%
9. Undecided with 15%
10. Undecided with 29%; Walsh with 4%; Williams with 3%; Baer and Madden with 1%
11. Undecided with 9%
12. Undecided with 9%; "Another candidate" with 1%
13. "Don't know" with 17%; "other/none of the above" with 4%
14. "Undecided" with 10%; "don't know/refused" with 4%
15. Would not vote/would not vote for U.S. Senate with 2%

References

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58. Birkeland, Bente (August 22, 2019). "Hickenlooper Kicks Off Bid For Senate Seat With Rep. Perlmutter And Beer". Colorado Public Radio.
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External links

Official campaign websites

• Joseph "Joey" Camp (I) for Senate
• Raymon Doane (L) for Senate
• Stephan "Chairman Seku" Evans (U) for Senate
• Cory Gardner (R) for Senate
• John Hickenlooper (D) for Senate
• Danny Skelly (I) for Senate