Democratic Sen. Gary Peters won’t run for re-election in Michigan in 2026, creating a pivotal open Senate seat in one of the most tightly divided battleground states in the U.S.

Democratic U.S. Sen. Gary Peters, of Michigan, announced Tuesday that he will not run for a third six-year term in 2026 leaving an open Senate seat.

Michigan Sen. Gary Peters announces he won't run for reelection in 2026, prompting speculation on his replacement, with Pete Buttigieg as a potential candidate.