Marco Rubio did his part, although he should have done it two weeks ago when it might have given Ted Cruz a chance to take Florida's 99 winner-take-all delegates. What's done is done, though, and Rubio's campaign is now as officially done as it already was practically done. The Catch 22 if you're a Cruz supporter, of course (or simply a #NeverTrump bitter-ender), is that you needed John Kasich to win Ohio last night to deny Trump that state's 66 delegates, but you also need Kasich to now do what he won't do precisely because he won:
Get out as well.