The 119th Congress (2025-2027) is setting a record for turnover, leading to the most massive number of members who will no longer be members in the 120th Congress (2027-2029).
Based on the latest information, but certain to be added to over the next few months, the statistics as of now show the following:
At least, 83 Incumbents will NOT be returning:
70 members of the House of Representatives, including 30 Democrats and 40 Republicans
13 US Senators, including 9 Republicans and 4 Democrats
Retirements, Resignations, Deaths, Seeking Other Offices, and Reelection Primary Losses are the factors that are causing massive turnover, and with more to come after more primaries and Election Day results.
Seven sitting Democrats and three Republicans in the House have lost primaries, and two Republican Senators also lost their primaries, John Cornyn and Bill Cassidy.
Also, 27 House members have given up their seats to run for another office, with 13 losing their bids for another office. Additionally, Senator Tommy Tuberville of Alabama is not running for reelection, but is the Republican nominee for Governor.
Five House members have died during this Congress, as well as Republican Senator Lindsey Graham.
Additionally, there have been seven resignations, mostly due to ethics related charges, but also appointment or election to other offices, as well as the resignation of Marjorie Taylor Greene in opposition to Donald Trump on the Epstein Scandals matter and other breaks with Trump.
It is good that the next Congress will be, assuredly, much younger, with the move against endless service of long term members being a positive development.
One more major moment of challenge of age against youth will be the September 1 Massachusetts primary for the Senate, where Senator Ed Markey, age 80, with 37 years in the House of Representatives and 13 plus years in the US Senate, faces the challenge of Congressman Seth Moulton, who is 47 years old and has served 12 years in the lower chamber.
Markey is a strong progressive with an outstanding record, but it seems to most observers that it is time for a younger generation to take over.
Amazingly, Markey held off former Congressman Joseph Kennedy III six years ago, despite the Kennedy name, and it will be a close watched primary coming up two weeks from now.