Historically black university in Texas cancels Senator's speech

U.S. Senator John Cornyn will no longer deliver the commencement address at Texas Southern University this weekend, the school said on Friday, after U.S. Education Secretary Betsy DeVos was booed at another historically black university.More than 800 people signed a petition started by a Texas Southern University student who opposed the university's invitation to the Republican senator to speak at Saturday's graduation in Houston.The petition said Cornyn's backing of DeVos and Attorney General J