Several GOP Senate incumbents are already staring down the threat of primary challenges next year as friction builds between the MAGA and establishment wings. Sen. John Cornyn (R-Texas), who plans

Political analysts believe Tillis will be the most vulnerable incumbent Republican in the midterms -- elections where the party in power often loses seats in Congress.

Trump's attorney general pick, Pam Bondi, to face questioning from the Senate Judiciary Committee on Wednesday.