While speaking with reporters on Monday, President Donald Trump said he's not sure who he will endorse in the U.S. Senate race between Texas Attorney General Ken Paxton and U.S. Sen. John Cornyn.

U.S. Sen. Ted Cruz and Texas Attorney General Ken Paxton are jumping in with dueling endorsements in the heated primary for Paxton's successor. Cruz endorsed U.S. Rep. Chip Roy on Saturday, and Paxton threw his support on Monday behind Aaron Reitz,

Aaron Reitz and Chip Roy, positioning themselves as Paxton’s ideological heirs, have served as top aides for both the attorney general and Cruz.