Over the next two weeks, the non-Donald Trump candidates (except for Ben Carson) will stay in the race. That’s fine. And the good news (if you’re in the anti-Trump camp) is that all they have to do is pursue their enlightened self-interest, and that their interests pretty much coincide.

It’s in John Kasich’s interest to put some effort into Michigan next week, where he could win some delegates. But he really needs to focus everything he has on his home state, winner-take-all Ohio, which votes March 15, and would provide him by far his largest possible haul of delegates. Winning there is necessary to keeping his candidacy alive.