Cruz is mathematically done.
That means only the uninformed, the true believers and the anti trumps will vote for Cruz.
Trump is coming off of YUUUGE victories in NY, RI, DE,CT, PA, MD. These victories were by large margins.
He has BIG momentum now. That'll energize his base. Fence riders will now go to Trump.
The reason Indiana is seen as in play for Cruz, is because of lack of polls.
The anti Trumps figure that since there are few polls, that automatically means Cruz is leading.
The last 2 primaries have given Indiana's people something to think about.
Strong horse theory. Do you really want to waste your vote on a loser to placate some whiny elites and talk show hosts?