Pat Toomey says he won't run for another Senate term or governor

Democrats also have an advantage in recent history. Democrats have won four out of the last five races for governor.

Republican U.S. Sen. Pat Toomey of Pennsylvania will not seek reelection in 2022 and plans to leave public service, he confirmed, a surprise move for the fiercely anti-tax and anti-regulation lawmaker who had been seen as the favorite to be the party's nominee for governor in two years.

Toomey's decision will force Pennsylvania Republicans to look elsewhere for candidates and to a wide-open field for both seats in a politically divided state where both parties have shown they can win statewide races. At a news conference near his home in suburban Allentown, Toomey said he will serve out the final two