It seemed quite possible a few weeks ago that Mr. Trump could build a big lead on Super Tuesday, but Jeb Bush’s exit from the race and the big bump in Mr. Rubio’s poll numbers make it far less likely that Mr. Trump can pull that off.  With just five days until Super Tuesday, time is growing perilously short for the Republican “establishment” — whatever that means these days — to stop the Donald Trump train from picking up even more speed. Where else is the money going? The Winner-Take-All States Seem Promising for Trump If the rest of the country votes the way the first four states did, Donald Trump will have an edge in the big winner-take-all contests. UPDATE (Feb. 25, 3:19 p.m.): Rubio’s chances of winning in Virginia and Georgia have been updated to reflect new polls in those states.
– Whether Marco Rubio's aggressive performance in Thursday's debate translates into success on Super Tuesday remains an open question, but the Upshot blog has some hopeful news for his campaign: Even if Donald Trump sweeps all the states in play—and polls suggest he has a decent chance of doing that—Rubio remains very much alive. The main reason is that Republicans forbid winner-take-all contests prior to March 15, meaning Rubio (and Ted Cruz) can still pile up delegates for second and third place. The blog floats the possibility of Trump winning the day with a 34-25-25 percent split over the other two, in line with his previous victories. That would give him 279 delegates and Rubio 164. "It’s a respectable tally for Mr. Rubio, even though he loses every state," writes Nate Cohn. Ideal? No, but it keeps him afloat until March 15, when big winner-take-all states such as Illinois, Ohio, Missouri, North Carolina, and Rubio's home state of Florida come into play. At this point, Rubio would have to win some of those to have any hope of beating Trump. If not, his "chances of winning a majority of delegates would all but evaporate." Of course, Rubio hopes to pull off some victories on Tuesday, and FiveThirtyEight notes that his campaign is spending heavily in Virginia and Georgia to make that happen. He's also spending big in Texas, which has the most delegates at stake, for a different reason. Because it's Cruz's home turf, Texas is where Rubio is most vulnerable to failing to receive 20% of the vote, the threshold for receiving any delegates at all.