The survey finds all four GOP candidates within 10 points of each other.
The new digital ad hits Trump on trade.
Trump continues racking up wins in the presidential race.
The Bayou State gives Trump another victory in the Deep South.
He declined to answer, insisting that he will win his home state.
He said it's uncertain who will win his home state of Kentucky.
The billionaire businessman urged Kansans to support him at the polls.
Trump's campaign manager came on stage during a commercial break.
He called a brokered convention "the worst possible thing" for the GOP at the time.
"Conservatism is not about how offensive you’re willing to be."