If Cruz wins in Indiana I would have to say that Fiorina made a difference because Trump has a lot of momentum coming out of the East.
Prediction on likelihood?
Hoosiers aren’t that gullible or ill-informed.
I live near and often work in the most conservative county in the state and I couldn’t tell you what a Cruz sign even looks like, having never seen one.
And, of those people I’ve talked to, I’ve yet to meet a Cruz supporter while knowing about a dozen who have already voted for Trump.