Check Nate Silver graph
http://projects.fivethirtyeight.com/election-2016/primary-forecast/indiana-republican/
This is a very short term graph (9 days) and it looks like yesterday it turned on a dime giving Trump a big boost.......
LOL. That is a radical revision. One day 65-35 in favor of Cruz, next day 65-35 in favor of Trump. methinks the Cruz numbers of the past week have been fiction.
Back to the radical revision, to the extent that shows momentum (it does, I think), Trump is in even better shape than Silver claims with his baked "estimated probability of winning" number.