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.
Ohio plays starring role on Separation Tuesday
We’re dubbing today’s presidential primaries — in Florida, Illinois, Missouri, North Carolina, and Ohio — Separation Tuesday, because the main storyline is whether or not front-runners Donald Trump and Hillary Clinton further separate from the rest of the field. As our colleague Peter Alexander put it, tonight could be the difference between a coronation or a contested convention for Donald Trump. For Hillary Clinton, it could be the difference between getting a head start on the general election or becoming mired in another round of expensive primary battles against Bernie Sanders. And for both, the night largely hinges on Ohio. Unless the polls are really wrong, Donald Trump is expected to easily take winner-take-all Florida and its 99 delegates. And he should do well in Illinois, Missouri, and North Carolina, though Ted Cruz has been making a play in all three of those states. But in Ohio, our NBC/WSJ/Marist poll found Trump trailing John Kasich, the state’s governor, by six points. And other recent polling showsTrump either tied or behind in the state. Why is winning both Florida and Ohio important to Trump? Just look at the delegate math:
Trump currently holds an 86-delegate lead over Ted Cruz
****
Trump must win 53% of all remaining delegates to reach 1,237 magic number
Cruz must win 80% of all remaining delegates to reach 1,237 magic number
****
Trump must win 60% of all remaining delegates to reach 1,237 magic number
Cruz must win 80% of all remaining delegates to reach 1,237 magic number
Kasich must win 110% of all remaining delegates to reach 1,237 magic number
****
Trump must win 70% of all remaining delegates to reach 1,237 magic number
Cruz must win 80% of all remaining delegates to reach 1,237 magic number
Rubio must win 95% of all remaining delegates to reach 1,237 magic number
Kasich must win 110% of all remaining delegates to reach 1,237 magic number
Why Ohio is so important for the Clinton campaign
On the Democratic side, meanwhile, Hillary Clinton tonight is likely to expand her delegate lead over Bernie Sanders (766 to 553 among pledged delegates and 1,198 to 576 among delegates) from just the results of Florida and North Carolina alone. But Ohio will be the difference between a great night and a frustrating night for her. Win Ohio — and she erases the memory of last week’s Michigan loss, as well as deflate the momentum that Bernie Sanders gained. Lose Ohio — and it’s Michigan all over again, especially given that every poll out there shows Clinton ahead in the Buckeye State. Look, we know that math is king in this Democratic contest, and Clinton has sizable lead in this proportional system. But Sanders winning Ohio (and thus sweeping the Midwest) would let him hold on the momentum heading into the next month of contests (in Arizona, Idaho, Utah, Alaska, Hawaii, Washington, and Wisconsin), and that could chip away at Clinton’s delegate lead. That’s why Ohio is so big on the Democratic side.
Tonight’s poll closing times: Below are the final poll closings for tonight’s five primaries:









