Super Tuesday could cripple every Republican presidential candidate not named Donald Trump.

The best-case scenario for Trump would put him far ahead of his rivals in the race for delegates, and polls have him competitive almost everywhere that Republicans are voting. But even if he stumbles, Trump will leave Super Tuesday with enough delegates to remain at the front of the race.

Marco Rubio, Ted Cruz, John Kasich and Ben Carson all lack that luxury. Rubio revived establishment hopes with an aggressive debate performance on Thursday, but a weak finish this week would leave him hobbled heading into his must-win home state of Florida on March 15. Cruz is hoping his brand of conservatism will resonate in the seven Southern states that will dole out the largest share of delegates, but polls show Trump uncomfortably close even in Texas, where Cruz allies admit a loss would be disastrous. Kasich is holding out for Ohio later in March, but if he doesn’t outperform his polls, he’ll struggle to make the case that he’s a national candidate. And even Carson’s allies are suggesting that, barring a miracle, Super Tuesday is likely the end of the line.

More at Source: Breaking down the GOP’s Super Tuesday map