Even though Tuesday may not have more delegates or states in play as Super Tuesday, March 1, it's still a big day, with more than 1,000 delegates at stake. More importantly, the results could end up deciding who the Republican and Democratic presidential candidates will be.
Five states are casting votes on March 15, along with one U.S. territory on the GOP side. For the Republicans, it could be their last chance to stop Donald Trump's march toward the nomination, as the first winner-take-all states begin to vote. Florida Sen. Marco Rubio is trying to topple Trump in Rubio's home state, but a loss would likely prove fatal for his campaign. Ohio Gov. John Kasich is trying to fend Trump off on his home turf, with seemingly more success. Meanwhile, Texas Sen. Ted Cruz hopes he can grow his delegates and continue to make the argument he's the only candidate who could catch Trump.
On the Democratic side, Vermont Sen. Bernie Sanders hopes his surprise win last week in Michigan means he can make inroads with other Rust Belt voters in Ohio, Illinois and elsewhere. Former Secretary of State Hillary Clinton would like to blunt Sanders's new-found momentum and notch wins in the Midwest.
Coming close no longer cuts it on Tuesday, at least for Republicans. The biggest prizes of the night, Florida and Ohio, are winner-take-all contests. For Republicans in the rest of the states and Democrats in all their contests, delegates will still be awarded proportionally.