From what I heard on CNN, this is based on Kasich's internal polls. I will wait for actual results. I find it hard to believe so many Ohioans are willing to basically throw away their vote for favorite son. If they like him as their governor, fine, please keep him.
OH will be a speed bump for Trump. If Trump does really well in NC and IL, it will be a big night, His FL performance is really something against a sitting senator and FL is a battleground state in the general election.