If Trump is close he will cut a deal with the Rube for the VP slot to put him over the top. He will not make peace with Cruz since Cruz has been the only candidate to put a dent in Trump in the primary campaign.
The Rube will be the VP for Trump and it will be a bone toss to the GOPE, I took your candidate as VP, I expect your unwavering support.
That was my original thought. Maybe pick Walker instead of Rubio.