Although I’ve been told and have seen mention that Kasich would never go this route, Trump needs to convince Kasich to be his running mate. This is for a number of reasons.
First, Kasich understands D.C. and would be invaluable to him in navigating through Congress. Second, Kasich is seen by many, many Americans – on both sides of the political aisle – as a reasonable and thoughtful Republican (something we know people don’t see Trump as at this time). Third, Ohio is a critical state in the Electoral College math – and Kasich is clearly very strong (for good reasons) in that state. And lastly, this move will calm down “the establishment” in the GOP enough to get them to not force a floor fight at the convention – something that would be extremely destructive to the Party and it’s chances in November.
If Trump wants to win and govern, this is the first big “deal” he needs to make.