On "Hannity" tonight, Jeb Bush stood by the criticism he leveled at fellow GOP presidential candidate Marco Rubio at last night's debate.

Bush pointed to Rubio's habit of missing Senate votes while campaigning for president and called on him to resign from his Senate seat.

"He needs to be able to do his job," Bush told Sean Hannity. "He’s going to be a great candidate, for sure. But he’s a United States senator, I think he ought to show up."

Bush said that our country has huge national security issues and the Senate should be pushing President Obama toward a better, less disastrous foreign policy.

"There should be full engagement to protect our country from a grave threat, which is the weakest foreign policy since Jimmy Carter," Bush said.

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