I wonder if he is going to do that well in NY. A guy from Real Clear Politics was on Beck this morning and said they have no idea how to figure out reliably how much support Trump has in some Liberal districts because there are so few GOP voters in them. This is a closed Primary state after all and a handful of votes can sway this wildly.
In New York, the big Republican areas are Western New York and the Southern Tier, especially since the Carl Paladino campaign in 2010. Paladino has gone all-in for Trump and has apparently managed to swing both Republican congressmen, Chris Collins (once a conservative county executive, now turned moderate/liberal Congressman) and Tom Reed (who has been a solid establishment figure, somewhere between moderate and conservative in his beliefs). Some of the most conservative counties in the region are in these regions, and if Cruz is going to have any chance of picking off delegates, Reed's and Collins's congressional districts might be good opportunities. These regions are strong independent thinkers with a healthy distrust of frontrunners.
Then there's Central New York. The core (Syracuse and Ithaca) is hardcore Democrat, but this region is built on Rockefeller Republicanism: generally more liberal than the national norm and conservative/Tea Party attempts to win the Congressional seat there (held by Richard Hanna last I checked) have failed twice. It's hard to say who they'd support, but it wouldn't be a stretch to think that Kasich gets his biggest support here.
The North Country is similar, maybe not quite as liberal, but quite moderate. Their Congresswoman, Elise Stefanik, has not endorsed, but it's clear she doesn't like Trump.
Moving downstate, the Hudson Valley and northern suburbs of New York will be difficult to judge, and their relatively high population makes this a wild-card. I haven't been able to really gauge anything regarding support.
New York City has very few Republicans; in these races, they're about as relevant as much smaller upstate counties. They're probably Trump strongholds.
All in all, local politics has, by and large dominated discussion around here, which means the primary hasn't received much attention. That also plays into Trump's favor.
As a non-affiliated voter, I, alas, don't get to vote.