Sen. Pat Toomey has decided not to run for reelection or for governor of Pennsylvania in 2022, according to two people familiar with his plans, a surprise decision by the Republican with significant implications for the next elections in the state.

He will serve out his current Senate term but won’t run for either of those offices, seemingly ending his career in elected office, at least for now. A formal announcement is expected Monday.

Toomey’s office on Sunday neither confirmed nor denied the senator’s plans.

The only Republican now holding statewide office other than judges, Toomey was widely seen as the likely Republican favorite for governor in 2022. His decision not to run for that office or for Senate could create two wide open contests on the Republican side, while depriving the party of running its most established current political figure in Pennsylvania.