Ted CruzRafael (Ted) Edward CruzOvernight Defense & National Security — US, Iran return to negotiating table Senate GOP blocks defense bill, throwing it into limbo On The Money — Biden stresses calm amid omicron fears MORE said late Thursday that rival Marco RubioMarco Antonio RubioWisconsinites need infrastructure that is built to last  Republicans struggle to save funding for Trump's border wall Rubio: Dropping FARC from terrorist list threatens Colombians, US security MORE would make a better president than Republican front-runner Donald TrumpDonald TrumpPence: Supreme Court has chance to right 'historic wrong' with abortion ruling Prosecutor says during trial that actor Jussie Smollett staged 'fake hate crime' Overnight Defense & National Security — US, Iran return to negotiating table MORE.

"Marco is not my enemy, Marco and I are friends. Marco and I would both make a much better candidate and a much better president than would Donald," Cruz told CNN's Jake Tapper after Thursday's Republican debate.

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"I like Donald personally. He's a charming guy, although he can turn on you in an instant," Cruz continued. "I think it depends on what side of bed he woke up on."

During Thursday night's debate from Houston, both Cruz and Rubio directed their attacks toward Trump, who is riding high after three consecutive wins, in New Hampshire, South Carolina and Nevada. The debate comes ahead of Super Tuesday next week, where a dozen states will vote.

Cruz is hoping to fend of Trump in his home state of Texas, which votes on Tuesday.

During the debate the senator hit Trump for past liberal positions, questioning his conservative credentials.

Cruz, though, also jabbed at Rubio on Thursday, suggesting the Florida senator should have gone after Trump sooner this week.

"The only candidate who has ever beaten Trump or who is in a position to do so on Super Tuesday is us," Cruz said.