(Bloomberg) -- The following table lists members of the U.S. Senate and U.S. House who aren't seeking re-election in 2020 or who vacated their seats or died during the current 116th Congress.
Departing Senators
| Departing Senators | Party | State | 1st Elected | Reason |
| Lamar Alexander | Rep. | Tennessee | 2002 | Retiring |
| Pat Roberts | Rep. | Kansas | 1996 | Retiring |
| Tom Udall | Dem. | New Mexico | 2008 | Retiring |
Departing House Members
| Departing House Members | Party | State-CD | 1st Elected | Reason |
| Rob Bishop | Rep. | UT-01 | 2002 | Retiring |
| Rob Woodall | Rep. | GA-07 | 2010 | Retiring |
| Bradley Byrne | Rep. | AL-01 | 2013 | Running for U.S. Senate |
| José Serrano | Dem. | NY-15 | 1990 | Retiring |
| Ben Ray Luján | Dem. | NM-03 | 2008 | Running for U.S. Senate |
| Eric Swalwell | Dem. | CA-15 | 2012 | Running for President |
House Vacancies
| House Vacancies | Party | State-CD | 1st Elected | Reason | Successor |
| Tom Marino | Rep. | PA-12 | 2010 | Resigned Jan. 23, 2019 | May 21 special election |
| Walter Jones | Rep. | NC-03 | 1994 | Died Feb. 10, 2019 | July 9, 2019 special election if no primary runoff; Sept. 10, 2019 if there is primary runoff |
Note: NC-09 is vacant after the state elections board declined to certify a winner in the 2018 election and ordered a new election
To contact the reporters on this story: Greg Giroux in Washington at ggiroux@bloomberg.net;Alex Tanzi in Washington at atanzi@bloomberg.net
To contact the editors responsible for this story: Katherine Rizzo at krizzo5@bloomberg.net, Greg Sullivan
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