As of Aug. 15, 18 members of Congress—five Senators and 13 Representatives—have announced they will not seek re-election in 2024.

This includes 13 Democrats—four in the Senate and nine in the House—as well as five Republicans—U.S. Sen. Mike Braun (R-Ind.) and four House members.

The same number of U.S. Senators (5) had announced they were not running for re-election at this point in the 2022 election cycle. Four had announced at this point in the 2020 cycle, and none had announced at this point in the 2018 cycle.

The 13 U.S. House members who have announced they are not running for re-election in 2024 are four fewer than the 17 members who had announced at this point in both the 2022 and the 2018 election cycles. The same number of U.S. House members (13) had announced they were not running for re-election at this point in the 2020 cycle. 

Of the Senators not running for re-election, Sens. Diane Feinstein (D-Calif.), Debbie Stabenow (D-Mich.), Ben Cardin (D-Md.), and Tom Carper (D-Del.)—all Democrats—are retiring from public office. Braun is running for governor of Indiana.

Ten of the 13 U.S. House members not running for re-election—eight Democrats and two Republicans—are running for the U.S. Senate. These members include seven running for the open seats in California, Delaware, Maryland, Michigan, and Indiana, specifically:

• Reps. Barbara Lee (D), Katie Porter (D), and Adam Schiff (D) are running to replace Feinstein;
• Rep. Lisa Blunt Rochester (D) is running to replace Carper;
• Rep. David Trone (D)  is running to replace Cardin;
• Rep. Elissa Slotkin (D) is running to replace Stabenow; and,
• Rep. Jim Banks (R) is running to replace Braun.

And three other House members are challenging incumbent senators:

• Rep. Alex Mooney (R) is running against Sen. Joe Manchin (D) in West Virginia;
• Rep. Rubén Gallego (D) is running against Sen. Kyrsten Sinema (I) in Arizona; and,
• Rep. Colin Allred (D) is running against Sen. Ted Cruz (R) in Texas.

Additionally, Rep. Dan Bishop (R-N.C.) is running for state attorney general in North Carolina. 

Reps. Victoria Spartz (R-Ind.) and Grace Napolitano (D-Calif.) are the only House incumbents to have announced their retirement from public office.