|Incumbent||Party||Office||Reason for not seeking re-election|
|Congressman Bradley Roberts Byrne||Republican||House CD 1||Open Seat. 20 February 2019: Ran for but lost his party's nomination for the Class 2 Senate Seat in 2020.|
|Congressman Martha Roby||Republican||House CD 2||Open Seat. 26 July 2019: Not seeking election in 2020. "While my name will not be on the ballot in 2020...."|
|Governor Doug Ducey||Republican||Governor||Open Chair. Term Limit. At Term Limit|
|Governor Asa Hutchinson||Republican||Governor||Open Chair. Term Limit. At Term Limit|
|Senator Kamala D. Harris||Democratic||Senate Class 3||Open Seat. 11 August 2020: Former Vice President Joe Biden chooses Senator Kamala D. Harris as his Running Mate.|
7 November 2020: Apparently elected Vice President.
Governor Gavin Newsom (Democratic) will appoint a replacement to fill the remainder of the term ending in 2023.
22 December 2020: Secretary of State Alex Padilla (Democratic) is chosen by Governor Gavin Newsom (Democratic) to fill the Senate Class 3 Seat Senator Kamala D. Harris (Democratic) who has been elected Vice President.
|Congressman Paul Cook||Republican||House CD 8||Vacant Office. 17 September 2019: Not running for re-election. Ran for and won the contest for San Bernardino County Supervisor.|
7 December 2020: Resigned be seated as a San Bernardino County Supervisor
|Congressman Duncan Duane Hunter||Republican||House CD 50||Vacant Office. 2 December 2019: Will plead guilty re: misuse of campaign funds; and reportedly will leave Congress.|
3 December 2019: Pleaded guilty to misuse campaign funds.
6 December 2019: "Shortly after the Holidays, I will resign from Congress. It has been an honor to serve the people of California's 50th District...."
7 January 2020: Announced his resignation effected 13 January.
8 January 2020: Governor Gavin Newsom announced that he will not call a Special Election to fill the so to be vacant seat. The seat will remain vacant until the new Congress is seated in January 2021.
13 January 2020: Resigned.
17 March 2020: Former Member of Congress Duncan Hunter (Republican) is sentenced to 11 months in prison.
|Congressman Susan A. Davis||Democratic||House CD 53||Open Seat. 4 September 2019: "I will not seek another term in Congress."|
|Congressman Scott Randall Tipton||Republican||House CD 3||Lost Primary / No Longer Running|
|Congressman Theodore Scott "Ted" Yoho||Republican||House CD 3||Open Seat. 10 December 2019: "I am announcing my retirement from Congress at the end of this session ... I will not seek re-election in the upcoming election."|
|Congressman Vincent Ross "Ross" Spano||Republican||House CD 15||Lost Primary / No Longer Running|
|Congressman Francis Rooney||Republican||House CD 19||Open Seat. 19 October 2019: Will not run for a 3rd term.|
|Congressman William Robert "Rob" Woodall, III||Republican||House CD 7||Open Seat. 7 February 2019: "... I have decided not to seek reelection in 2020."|
|Congressman Douglas Allen "Doug" Collins||Republican||House CD 9||Open Seat. 28 January 2020: Candidate for U.S. Senate Class 3 Special|
|Congressman John Thomas "Tom" Graves, Jr.||Republican||House CD 14||Vacant Office. 5 December 2019: "Today I announced to my friends and fellow Georgians that I will not be seeking re-election to the U.S. House of Representatives in 2020."|
11 September 2020: "I intend to step down from Congress ... in October...."
2 October 2020: Announced he would resign on 4 October.
|Governor David Yutaka Ige||Democratic||Governor||Open Chair. Term Limit|
|Congressman Tulsi Neil Gabbard||Democratic||House CD 2||Open Seat. 24 October 2019: "I will not be seeking reelection to Congress in 2020. I humbly ask for your support for my candidacy for President of the United States."|
19 March 2020: "... today, I'm suspending my presidential campaign, and offering my full support to Vice President Joe Biden in his quest to bring our country together."
|Congressman Daniel William "Dan" Lipinski||Democratic||House CD 3||Lost Primary / No Longer Running|
|Congressman John M. Shimkus||Republican||House CD 15||Open Seat. 30 August 2019: "...now is the time for me to announce that I will not be seeking reelection...."|
|Congressman Peter J. Visclosky||Democratic||House CD 1||Open Seat. 6 November 2019: "On November 6th, 35 years ago today, I was elected to serve as Indiana’s First District U.S. Representative. Today, I announce that I will not seek re-election in 2020...."|
|Congressman Susan W. Brooks||Republican||House CD 5||Open Seat. 14 June 2019: "... I will retire as U. S. Representative for the 5th District of Indiana at the end of my current term."|
|Congressman David Wayne "Dave" Loebsack||Democratic||House CD 2||Open Seat. 12 April 2019: Announced his retirement.|
12 November 2020: Recount requested. At the conclusion of the recount, 6 votes separate the candidates.
Notice of Contest.
|Congressman Steven A. "Steve" King||Republican||House CD 4||Lost Primary / No Longer Running|
|Senator Pat Roberts||Republican||Senate Class 2||Open Seat. 4 January 2019: "I will not be a candidate in 2020 for a fifth Senate term."|
|Congressman Roger W. "Doc" Marshall||Republican||House CD 1||Open Seat. 7 September 2019: Running for the U.S. Senate Class 2 seat in 2020.|
|Congressman Steven C. "Steve" Watkins, Jr.||Republican||House CD 2||Lost Primary / No Longer Running|
|Governor John Bel Edwards||Democratic||Governor||Open Chair. Term Limit. At Term Limit|
|Congressman Cedric L. Richmond||Democratic||House CD 2||Open Seat. 17 November 2020: Announced his resignation to become Senior Adviser to the President and White House Public Engagement Director in the Biden Administration.|
A special election will be called to fill this seat once it becomes empty. All candidates from all parties appear on the open primary ballot. If no candidate receives a majority (50% of the vote plus 1), a runoff is held between the top two vote getters.
|Congressman Ralph Lee Abraham, Jr.||Republican||House CD 5||Open Seat. 6 December 2018: Ran for Governor in 2019 but did not receive his party's nomination.|
26 February 2020: "I am officially announcing my retirement from Congress following the completion of my current third term, and I will not seek re-election in 2020."
Since no candidate received a majority (50% of the vote plus 1) in the 3 November General Election, a runoff is held between the top two vote getters on 5 December 2020.
5 December 2020 returns from the Louisiana Department of State.
5 December 2020 returns from a media source.
|Governor Lawrence J. "Larry" Hogan, Jr.||Republican||Governor||Open Chair. Term Limit|
|Congressman Joseph Patrick "Joe" Kennedy, III||Democratic||House CD 4||Open Seat. 26 August 2019: Filed with the FEC to run for the U.S. Senate in 2020.|
21 September 2019: "I'm running for US Senate."
1 September 2020: Lost the US Senate Primary.
|Congressman Justin Amash||Libertarian||House CD 3||Open Seat. 28 April 2020: Announced that he will run for the Libertarian Presidential nomination.|
16 May 2020: "After much reflection, I've concluded that circumstances don't lend themselves to my success as a candidate for president this year, and therefore I will not be a candidate...."
16 July 2020: "He hasn't been campaigning for any office and doesn't plan to seek the nomination for any office...." --Adviser Poppy Nelson.
|Congressman Paul Mitchell, III||Independent||House CD 10||Open Seat. 24 July 2019: "I have decided I will not seek to continue to represent Michigan’s 10th District next term. After serving out the remainder of the 116th Congress – I will return to my family and our small farm."|
14 December 2020: Member of Congress Paul Mitchell, III announced he was leaving the Republican Party and becoming an Independent.
|Congressman William Lacy Clay, Jr.||Democratic||House CD 1||Lost Primary / No Longer Running|
|Governor Steve Bullock||Democratic||Governor||Open Chair. Term Limit. At term limit.|
14 May 2019: "I'm Steve Bullock and I'm running for President."
2 December 2019: Suspended campaign. "... it has become clear that in this moment, I won't be able to break through to the top tier of this still-crowded field of candidates ...."
9 March 2020: "Now I'm taking that fight to the US Senate."
|Congressman Greg Gianforte||Republican||House At-Large||Open Seat. 7 June 2019: Candidate for Governor.|
|Governor J. Peter "Pete" Ricketts||Republican||Governor||Open Chair. Term Limit. At Term Limit|
|Senator Tom Udall||Democratic||Senate Class 2||Open Seat. 25 March 2019: "... I'm announcing today that I won’t be seeking re-election next year."|
|Congressman Ben Ray Luján||Democratic||House CD 3||Open Seat. 1 April 2019: Member of Congress Luján declared he would run for the Class 2 Senate Seat in 2020.|
|Congressman Peter T. "Pete" King||Republican||House CD 2||Open Seat. 11 November 2019: "I have decided not to be a candidate for re-election to Congress in 2020. I made this decision after much discussion .... The prime reason for my decision was that after 28 years of spending 4 days a week in Washington, D.C., it is time to end the weekly commute ...."|
|Congressman José Enrique Serrano||Democratic||House CD 15||Open Seat. 25 March 2019: "Today, I am announcing that I am living with Parkinson's disease. After my diagnosis, I initially planned to continue my work representing the people of the South Bronx far ... over the last few months I've come to the realization that Parkinson’s will eventually take a toll, and that I cannot predict its rate of advancement. Because of this uncertainty, I do not intend to seek re-election in 2020 ...."|
|Congressman Eliot Lance Engel||Democratic||House CD 16||Lost Primary / No Longer Running|
|Congressman Nita M. Lowey||Democratic||House CD 17||Open Seat. 10 October 2019: "After 31 years in the United States Congress, representing the people of Westchester, Rockland, Queens and the Bronx, I have decided not to seek re-election in 2020...."|
|Senator Richard Mauze Burr||Republican||Senate Class 3||Open Seat|
|Congressman George Edward Bell Holding||Republican||House CD 2||Open Seat. 6 December 2019: "And so it is with regret that I announce I will not be a candidate for Congress this election."|
|Congressman Bradley Mark "Mark" Walker||Republican||House CD 6||Open Seat. 17 December 2019: "I am humbled to have the support of my family, friends, and President Trump as we embark on the next step in our journey to serve North Carolina and put People Over Politics."|
|Congressman Mark Randal Meadows||Republican||House CD 11||Vacant Office. 19 December 2019: "After prayerful consideration and discussion with family, today I'm announcing that my time serving Western North Carolina in Congress will come to a close at the end of this term...."|
6 March 2020: Named Chief of Staff by President Donald Trump.
24 March 2020: Stated he would resign from Congress toward the end of the month. His official starting date as Chief of Staff is 1 April.
30 March 2020: Resigned to take the position as Chief of Staff on 30 March.
|Senator Robert Jones "Rob" Portman||Republican||Senate Class 3||Open Seat. 25 January 2021: Announced he will not seek re-election.|
|Governor Kate Brown||Democratic||Governor||Open Chair. Term Limit|
|Congressman Gregory Paul "Greg" Walden||Republican||House CD 2||Open Seat. 28 October 2019: "... the time has come to pursue new challenges and opportunities ... I will not seek re-election to the U.S. House of Representatives, nor election to any other office ..."|
|Senator Patrick Joseph "Pat" Toomey||Republican||Senate Class 3||Open Seat. 6 October 2020: "I will not be running for reelection in 2022 and ... will not be running for governor ... I will serve out the remainder of my term."|
|Governor Thomas W. "Tom" Wolf||Democratic||Governor||Open Chair. Term Limit|
|Governor Gina Marie Raimondo||Democratic||Governor||Open Chair. Term Limit. At Term Limit|
|Senator Lamar Alexander||Republican||Senate Class 2||Open Seat. 18 December 2018: "I will not be a candidate for re-election to the United States Senate in 2020."|
|Congressman David Phillip "Phil" Roe||Republican||House CD 1||Open Seat. 3 January 2020: "After prayerful consideration, I have decided to retire at the end of the 116th Congress."|
|Congressman John Lee Ratcliffe||Republican||House CD 4||Vacant Office. 28 July 2019: Nominated by President Donald Trump for National Intelligence Director.|
2 August 2019: Member of Congress Ratcliffe withdrew his nomination.
28 February 2020: Nominated by President Donald Trump for National Intelligence Director.
3 March 2020: Renominated by Primary for the U.S. House.
21 May 2020: Confirmed by the U.S. Senate 49-44 as National Intelligence Director. Governor Greg Abbott will not call a Special Election to fill this seat.
26 May 2020: Sworn as National Intelligence Director.
|Congressman K. Michael "Mike" Conaway||Republican||House CD 11||Open Seat. 30 July 2019: Retiring.|
|Congressman William McClellan "Mac" Thornberry||Republican||House CD 13||Open Seat. 30 September 2019: "I will not be a candidate for reelection in the 2020 election."|
|Congressman William "Bill" Flores||Republican||House CD 17||Open Seat. 4 September 2019: "After much prayer over the past few days and following conversations with my wife, Gina ... I have decided that my current term will be my last...."|
|Congressman Peter Graham "Pete" Olson||Republican||House CD 22||Open Seat. 25 July 2019: Announced that he will not run for re-election. "... I have decided to not seek re-election."|
|Congressman William "Will" Hurd||Republican||House CD 23||Open Seat. 1 August 2019: "I have made the decision to not seek reelection for the 23rd Congressional District of Texas...."|
|Congressman Kenny Ewell Marchant||Republican||House CD 24||Open Seat. 5 August 2019: "It is time for me to announce that I will not seek another term as Member of Congress...."|
|Governor Gary Richard Herbert||Republican||Governor||Open Chair. Retiring at the end of this term.|
|Congressman Robert William "Rob" Bishop||Republican||House CD 1||Open Seat. 29 July 2019: Retiring.|
18 January 2020: Running as Thomas Wright's Lieutenant Governor. Did not receive his party's nomination.
|Congressman Denver Lee Riggleman, III||Republican||House CD 5||Lost Primary / No Longer Running. Did not receive his party's nomination at the 13 June Convention.|
Nominations-- Democrats will nominate by Primary. Republicans will nominate by Convention on 13 June.
|Congressman Dennis "Denny" Heck||Democratic||House CD 10||Open Seat. 4 December 2019: "Today, I announce my retirement from a career in public service that began over forty years ago."|
3 April 2020: Candidate for Lieutenant Governor.
4 August 2020: On the November ballot for Lieutenant Governor.
|Congressman Frank James "Jim" Sensenbrenner, Jr.||Republican||House CD 5||Open Seat. 4 September 2019: "I think the time has come to basically turn over the page in the Fifth District."|
|Senator Michael B. "Mike" Enzi||Republican||Senate Class 2||Open Seat. 4 May 2019: Announced retirement. Not running for re-election.|
|Office||Reason for Open Chair or Seat|
|Voluntary||Term Limit||Vacant||Lost Primary||Total|
Parties appear in parenthesis and italics when a candidate receives the endorsement of a given Party and/or official sources indicate a candidate's association with a particular Party but only where the Party in question does not appear on the actual ballot as such.
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