The States coming up are winner take all. Stuff it...
Ok do the math. Not all states are WTA. Actually most are NOT WTA they are Winner take some and then congressional district split (like WI). NJ is a big WTA state that Trump gets, but go do the math yourself—I did and I was extra generous to Trump. Trump at best got 1210 delegates. And that is giving him the WTA states that he has even a remote chance at winning.
Now he could get some unbound delegates to vote for him in 1st round and then seal the deal. But if he doesn’t he won’t be the nominee in the end. Trump needs to focus on the delegates selection process—otherwise he might as well quit because he won’t win unless he beats Cruz in the delegate selection game.