Pew Research Center Follow 2026 primary season yields greatest preelection House turnover in over 3 decades 74 House members won't return next Congress – more than before any general election since 1992. https://www.pewresearch.org/short-reads/2026/09/16/2026-primary-season-yields-greatest-preelection-house-turnover-in-over-3-decades/ pewresearch.org
