Probably correct, but Utah, Wisconsin, Colorado, and now Wyoming... Since MAR 22, Cruz is up 120-6. There could be some more surprises coming up, but the Liberal States (NY, MD, CT) are likely going to hand the delegates to Trump. Trump has NEVER topped 50%, even with the field down to 2.5 candidates. It isn't until his home state, 75% of the way through the contest, with only 1.5 opponents, and in very Liberal states, that he has a chance to do so. That's not very encouraging.
It has been nice keeping the loudest Trumpeters quiet for a few weeks, though.
No way can Trump pick up 400 delegates over the next 6 contests. There are only about 265-270 available (after subtracting the 54 in PA that will remain uncommitted).
I'll be happy if Trump comes away with 200 over the next two weeks. That will put him at about 950 and in good position to get to the 1237 by Jun 7.
