Looks bad for Trump. He absolutely needs >50%
No he doesn't, it's WTA if he gets 1 vote more than the person in 2nd.
Only on the CD level. Statewide, it's proportional if he doesn't hit the 50% mark.
The question is whether Trump outperforms his polls (as in New York) / receives a bump from his New York victory, or whether Trump performs at around his polling average as usual, which is just shy of 50%.
I'd say it's more likely than not Trump breaks 50% and sweeps the delegates, but it's going to be close.
A related question is whether Cruz breaks 20% in the event Trump falls below 50%. If he doesn't, he's shut out of delegates entirely.