2020 United States Senate election in Tennessee

The 2020 United States Senate election in Tennessee was held on November 3, 2020, concurrently with other elections to the United States Senate. The 2020 U.S. presidential election and elections to the U.S. House of Representatives were also held, as well as the State Senate and State House elections. Incumbent Republican Senator Lamar Alexander announced that he would not run for re-election on December 17, 2018. The former United States Ambassador to Japan, Bill Hagerty won the open seat by a large margin defeating his Democratic opponent Marquita Bradshaw.
In the primary, President Donald Trump endorsed Hagerty. He ended up winning the Republican nomination, defeating orthopedic surgeon Manny Sethi and 13 others in the Republican primary. In the Democratic primary, environmental activist Marquita Bradshaw from Memphis defeated Robin Kimbrough Hayes, as well as three other candidates. Nine independent candidates also appeared on the general election ballot.
Bill Hagerty outperformed Donald Trump by nearly four percentage points during the general election, a gap largely attributed to his stronger performance in suburban areas across Tennessee. Hagerty ran particularly well in the suburbs of Nashville, including Forest Hills, Belle Meade, Oak Hill, Franklin, Hendersonville, and Murfreesboro. He also exceeded Trump’s margins in suburban Memphis communities, most notably Germantown and Collierville as well as other surrounding suburbs.

Republican primary

Bill Hagerty, businessman, former United States Ambassador to Japan and former Commissioner of the Tennessee Department of Economic and Community Development

Cliff Adkins
Natisha Brooks
Byron Bush, dentist
Roy Dale Cope, small business owner and pharmacist
Terry Dicus, attorney
Tom Emerson Jr., Tea Party candidate for the U.S. Senate in 2014
George Flinn Jr., former Shelby County commissioner, Nixon Administration Official, physician, engineer, businessman, and Republican candidate in Tennessee's 8th congressional district in 2016 and 2018
Jon Henry, U.S. Marine Corps veteran
Kent Morrell, business owner
Glen Neal Jr., retired public servant
John Osborne, real estate agent and business owner
Aaron Pettigrew, truck driver
David Schuster, U.S. Navy veteran
Manny Sethi, orthopedic surgeon, director of the Vanderbilt Orthopedic Institute Center for Health Policy and founder and president of the non-profit Healthy Tennessee

Jim Elkins, Republican candidate for Tennessee's 3rd congressional district in 2020
Johnny Presley, retired physician's assistant, hospital and clinic owner, farmer

Clyde Benson, army veteran and Republican candidate for District 39 of the Tennessee House of Representatives in 2016
Larry Crim
Josh Gapp, physician
Garrett "Lance" Nichols
Stokes Nielson, music industry executive and guitarist for the Lost Trailers

Lamar Alexander, incumbent U.S. senator
Mae Beavers, former state senator
Diane Black, former U.S. representative for Tennessee's 6th congressional district and candidate for governor in 2018
Randy Boyd, former Commissioner of the Tennessee Department of Economic and Community Development, candidate for governor in 2018, and President of the University of Tennessee system
Bob Corker, former U.S. senator
Stephen Fincher, former U.S. representative for Tennessee's 8th congressional district and candidate for U.S. Senate in 2018
Chuck Fleischmann, U.S. representative for Tennessee's 3rd congressional district
Mark E. Green, U.S. representative for Tennessee's 7th congressional district and former state senator
Tre Hargett, Tennessee Secretary of State
Beth Harwell, former Speaker of the Tennessee House of Representatives and candidate for governor in 2018
Bill Haslam, former governor of Tennessee
David Kustoff, U.S. representative for Tennessee's 8th congressional district and former U.S. Attorney
Peyton Manning, retired NFL quarterback
Jeff Webb, businessman

Gary G. Davis, small business owner, baker, pilot, and perennial candidate
Robin Kimbrough Hayes, attorney and Christian minister
James Mackler, attorney, U.S. Army veteran and candidate for the U.S. Senate in 2018
Mark Pickrell, entrepreneur, attorney and Baptist deacon

Yomi Faparusi, physician, attorney, researcher, and former Republican candidate for Tennessee's 4th congressional district in 2014 and 2016
Jeffrey Grunau, activist
Ronnie Henley,
Dean Hill, US veteran, former federal employee, and activist
Steven Hooper
Aaron James
Elizabeth McLeod, conservative activist
Eric William Stansberry

with Bill Hagerty and James Mackler

Poll source	Date administered	Sample size	Margin of error	Bill Hagerty	James Mackler	Undecided
Mason-Dixon	January 28–30, 2020	625	± 4%	55%	33%	12%

with Manny Sethi and James Mackler

Poll source	Date administered	Sample size	Margin of error	Manny Sethi	James Mackler	Undecided
Mason-Dixon	January 28–30, 2020	625	± 4%	46%	35%	19%

with Generic Republican and Generic Democrat

Poll source	Date administered	Sample size	Margin of error	Generic Republican	Generic Democrat	Undecided
Cygnal	October 20–22, 2020	610	± 3.97%	58%	38%	4%
East Tennessee State University	April 22 – May 1, 2020	536	–	43%	26%	31%

Counties that flipped from Republican to Democratic

Hagerty won seven of nine congressional districts.