With the next round of primaries looming, Bernie Sanders appeared Monday at a rally in Youngstown, Ohio, to press the arguments about trade that worked so well for him in Michigan.

Another Tuesday in March; another crucial set of primaries. After the violent clashes in Chicago on Friday night, it’s back to the nitty-gritty of votes and delegate counts. By Tuesday night, Donald Trump could be well on his way to wrapping up the Republican nomination, or he could be facing the prospect of a fight all the way to the Convention. On the Democratic side, we will find out whether Bernie Sanders can build on his surprise victory in Michigan last week and deliver another blow to Hillary Clinton.

Five states will be holding primaries: Florida, Illinois, Missouri, Northsixty. Because Trump is also leading the polls in Missouri and North Carolina, it is conceivable that he could end the night with more than seven hundred delegates, and with a lead over the second-place candidate, Ted Cruz, of about three hundred delegates.

Such an outcome would leave Trump well short of the twelve hundred and thirty-seven delegates he needs to have a majority of the elected delegates. But the dynamics of the race would be overwhelmingly in his favor. If Trump wins Florida, Marco Rubio will almost certainly drop out of the race. If Trump wins Ohio, John Kasich is also likely to exit. That would leave Trump in a two-man race against Cruz.

With nineteen primaries and caucuses remaining, Trump would need to pick up roughly half of