First Read is a morning briefing from Meet the Press and the NBC Political Unit on the day's most important political stories and why they matter.
Stopping Trump and Clinton got harder after last night
Last night's big wins in New York by Donald Trump and Hillary Clinton didn't fundamentally alter the delegate math; in fact, the results were pretty much what we expected. But what last night served to do was make it harder to stop the two front-runners. And that could be especially true after next week's contests in Connecticut, Delaware, Maryland, Pennsylvania, and Rhode Island. Are the two races over? It's close to that on the Democratic side, while Trump is on a stronger path to a majority than he was two weeks ago.