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In his Talking Points Memo tonight, Bill O'Reilly said that Donald Trump "took the heat in last night's debate and did not buckle," despite the best efforts of Marco Rubio and Ted Cruz.

"Many pundits believe Marco Rubio won last night's debate, but again that's your call," O'Reilly said.

O'Reilly said that Rubio "took a page out of the Trump playbook: take it to your opposition."

He said that this time around, unlike past debates, Rubio focused on the poll leader - Trump.

But O'Reilly said that Trump "stood firm, and fought back the way he always does, using a mixture of disdain and pointed criticisms."

"While some Americans are offended by his blunt talk, there is no question it has worked for him so far."

He also said that Trump is smart to make border security a cornerstone of his campaign.

O'Reilly said that, on the verge of Super Tuesday, it is "crunch time," and if Trump sweeps, he wins.

But if Cruz can win in Texas, and the two senators can keep the other state contests competitive, it's on to the March 15 vote in Florida.

O'Reilly also said that he likes John Kasich as a candidate, but at this point he's running for vice president - "he just can't overcome the three front-runners."

"As for Ben Carson," O'Reilly said, "What can you say?"

"He's a good man, who's waged a dignified campaign, but has no shot."

Watch the full commentary above.

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