MADISON, Wis. (AP) — Wisconsin Gov. Scott Walker, who backs Cruz, said the race was “very likely” headed to an open convention but the 36 delegates Cruz won on Tuesday are “locked in.” Trump won six delegates in the state.

Under Wisconsin Republican Party rules, delegates must stick with the candidate they are pledged to until they are either released by that candidate or if the person fails to get a third of the vote at the convention after the first round.

Walker said in an interview on WTMJ radio on Wednesday that “Ted Cruz will win on the second ballot if not on the way in and he will unite the party.”

The actual delegates who will represent Cruz and Trump at the convention are being selected over the next month.

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