
Sen. Alan Armstrong (R-Okla.) signed an affidavit on March 24, 2026, stating that he will not run to represent Oklahoma in the U.S. Senate in 2026. On March 24, 2026, Oklahoma Gov. Kevin Stitt (R) appointed Armstrong to represent the state in the U.S. Senate. Markwayne Mullin (R) previously held the seat before he resigned…

On March 24, 2026, President Pro Tempore Chuck Grassley (R-Iowa) swore Sen. Alan Armstrong (R-Okla.) into the U.S. Senate, filling the vacancy in Oklahoma’s class II seat. The vacancy began on March 23, 2026, after Markwayne Mullin (R) resigned from the U.S. Senate to serve as the U.S. secretary of homeland security in President Donald…

Rep. Sam Graves (R-Mo.) announced on March 27, 2026, that he will not seek re-election to the U.S. House of Representatives in 2026. In a statement announcing his retirement, Graves said, “After considerable reflection, 2026 will be my final year in Congress. This wasn’t an easy decision, but it’s the right one. I believe in…

On March 17, 2026, the National Republican Congressional Committee (NRCC) released an initial list of nine candidates participating in its MAGA Majority program in 2026. According to NRCC, the program, formerly known as Young Guns, "highlights a slate of strong candidates running in key battleground districts across the country who embody the Trump agenda: securing…

This year’s filing deadline for candidates running for the U.S. House of Representatives in Idaho was Feb. 27, 2026. Ten candidates — four Democrats and six Republicans — are running for Idaho’s two U.S. House districts. That’s five candidates per district. There were three candidates per district in 2024, four in 2022, 3.5 in 2020,…

Sixty-six members of the U.S. Congress — 56 U.S. representatives and 10 U.S. senators — have announced they will not seek re-election in 2026. Since our Feb. 10 update, four U.S. representatives and one U.S. senator announced they will not seek re-election. Here’s a list of how independent election forecasters have rated the 2026 general…

Rep. Kevin Hern (R-Okla.) announced on March 11, 2026, that he will run to represent Oklahoma in the U.S. Senate in 2026 rather than for another term in the U.S. House of Representatives. On March 4, 2026, President Donald Trump (R) announced that he was nominating incumbent Sen. Markwayne Mullin (R-Okla.) to serve as Secretary…

On March 9, Rep. Kevin Kiley, who represents California's 3rd Congressional District, announced that he was immediately changing his party affiliation from Republican to independent. His decision means Republicans now have a 217-214 majority in the U.S. House of Representatives, with three vacancies. Kiley is the sole independent in the chamber. Although Kiley has changed…