Cornyn declines to back Cruz ahead of Senate primary 
Manu Raju
Ted Cruz shouldn’t expect much help from the senior GOP senator from his state, John Cornyn, ahead of a potential Senate primary challenge next cycle.
['Ted', 'Cruz', 'shouldn’t', 'expect', 'much', 'help', 'from', 'the', 'senior', 'GOP', 'senator', 'from', 'his', 'state,', 'John', 'Cornyn,', 'ahead', 'of', 'a', 'potential', 'Senate', 'primary', 'challenge', 'next', 'cycle.']