“I doubt it gave very many people pause. It was a debate, and we did great in that debate,” Mr. Rubio said in an interview that aired on ABC’s “Good Morning America” on Tuesday. “By every metric that we looked at in our campaign, from fundraising to interest on the Web, to Google searches, we had a very strong debate.”

“The media’s fixated on the first 10 minutes, but the voters are looking at the totality … especially in a place like New Hampshire,” he said.

Mr. Rubio was attacked during the debate by New Jersey Gov. Chris Christie for appearing overly scripted, and delivered similar lines criticizing Mr. Obama for intentionally trying to reshape America.