Following RNC speech, Cruz critics urge McCaul to mount primary challenge

A quiet Republican campaign to oust Sen. Ted Cruz in next cycle's Texas primary is unfolding as the conservative firebrand has launched an aggressive effort to keep his seat ahead of another likely run for the White House.

In the wake of Cruz's controversial speech at the party convention where he refused to endorse Donald Trump, the Texas senator's GOP critics believe there could be a new opening for an intraparty challenge .... http://edition.cnn.com