President Donald Trump is weighing an endorsement in the Texas Republican Senate runoff, and some state party members say he risks backing the wrong candidate. They warned that Trump could disappoint hardline voters if he supports Sen. John Cornyn over state Attorney General Ken Paxton. Cornyn is an establishment pick, while Paxton is supported by the base. Trump says he will decide soon but hasn't made an announcement. Cornyn is trying to align with Trump by backing changes to the filibuster for a citizenship voter-registration bill. The race turns nasty as Cornyn launches an attack ad targeting Paxton’s personal conduct.
