To a degree surpassing any other contest in the 2022 midterms so far, Donald Trump has poured his personal prestige into Pennsylvania’s Republican Senate primary race, which is going through a final spasm of uncertainty as Kathy Barnette, an insurgent candidate with a sparse résumé, gives a last-minute scare to Trump’s pick, Dr. Mehmet Oz.
The outcome of that election, as well as the G.O.P. contest for governor, is threatening to implode the state’s Republican Party — with a blast radius that might be felt in states as far away as Arizona, Georgia and North Carolina over the coming weeks and months.
The turbulence also has major implications for Trump’s hold on the party, which is growing more alarmed that the former president’s involvement in primaries could scupper Republicans’ chances of reclaiming the Senate despite