Democratic Sen. Gary Peters of Michigan announced Tuesday that he will not seek reelection in 2026, leaving Congress at the end of his second term and opening up a highly competitive battleground Senate seat.

Democratic Michigan Senator Gary Peters has announced he will not seek a third term in 2026, giving Republicans a top target in a state likely to become a major midterm battleground. Peters, who won reelection in 2020 by a narrow margin of less than 2 points, surprised many with his decision.

The announcement by Sen. Gary Peters creates an open seat in battleground Michigan, which has flipped from red to blue to red again in the last three presidential elections.

Mich., told the Detroit News in an interview released Tuesday that he would not be seeking re-election for his seat, which will likely set off an intense battle between Democrats and the GOP over the

Democrat Gary Peters' announcement means Michigan will have an open U.S. Senate seat for the second time in two years.

They will need to defend an open seat in a battleground state that President Trump carried in 2024. And Gov. Gretchen Whitmer ruled out a run.

Democratic Sen. Gary Peters won’t seek reelection in 2026, kicking off what could be a crowded primary to replace him in the battleground state of Michigan. Peters, 66, told The Detroit News that it is time for a “new chapter” that focuses on spending more time with his family.

The surprise decision Tuesday again complicates for Democrats in Michigan, who will be forced to defend an open seat in the battleground state for the second straight election cycle. Peters led the Democrats' Senate campaign efforts from 2021 to 2025 and helped the party hold control of the chamber in 2022 before Republicans flipped it last year.

U.S. Sen. Gary Peters announced this week he will not seek reelection, setting the stage for a potentially crowded 2026 race.

Buttigieg is reportedly weighing a run for U.S. Senate in the seat that will be vacated by outgoing Democratic Michigan Sen. Gary Peters.

Known for his bipartisan work in Senate and rated twice by the non-partisan Center for Effective Lawmaking as the most effective U.S. senator, Peters is a decent politician who has demonstrated he is not into the trappings of political power.