With just days to go in the Texas Senate primary, President Donald Trump is descending on the Lone Star State today. But don't expect him to put his thumb on the scale. The president is not expected to endorse in the three-way GOP race between incumbent John Cornyn, state AG Ken Paxton and Rep. Wesley Hunt. The contest is coming down to the wire as opposing factions face off for the future of the Republican Party. Playbook's Adam Wren and Politics Bureau Chief Jonathan Martin break down the latest movement