Controversial Texas Attorney General Ken Paxton is challenging U.S. Sen. John Cornyn's reelection. The $100 million fight could have far-reaching implications for the GOP, and party control of the Senate.

Paxton, the likely Republican nominee, is considered less likely to fare well against Democratic nominee in midterms.

Texas Republican Senate candidates Sen. John Cornyn and state Attorney General Ken Paxton are going to be scarcely visible in public on the last day of campaigning ahead of…