Kasich is only sane in relative terms in that party, but yeah. Delegates for Cruz+Rubio+Kasich would lead Trump 777-754. But I'm not sure the two drop outs can bind their delegates to Kasich (don't know) and not sure that Trump couldn't overcome that lead in the remaining primaries, where he would likely pummel Kasich.
Also: the email thing is a non-scandal. As usual.
But it did get me reading 
this, which is sort of fun. Let's look at some bits:
Oh really? Well, if Cucc, who is clearly an unbiased expert commentator says so...
Or, obtained materials that were not marked as such and only became deemed to be years later as they were reviewed for release amidst controversy.
It's pretty hard to "knowingly" remove classified materials that are not yet classified, which none of these were as of the time of any of those actions.
ETA: Okay, I moved through this too fast. So, Cucc, that first time, that can't be "knowing" because there aren't yet any materials, much less classified ones. I'm not expert in this area of law, but I'm pretty confident that "knowing" does not mean having perfect foresight of the future. The second and third, what I said before.