This post was originally published on Politico.

The storied career of Sen. John Cornyn came to a swift and decisive end at the hands of the GOP voters who once propelled him to power.

The senator was a towering figure in both national and Texas politics, known for his sober temperament, ability to cut deals and role in shaping the Senate GOP conference during the last four presidencies. Then, just about an hour after polls closed Tuesday, Cornyn lost his primary to Ken Paxton, a scandal-plagued MAGA darling who was boosted by President Donald Trump’s last-minute endorsement.

Cornyn’s defeat is rattling the establishment wing of the GOP,

Author: By Liz Crampton