Ted CruzRafael (Ted) Edward CruzDemocrats: It's Trump's world, and we're just living in it On The Trail: Bernie Sanders and the paradox of choice Pompeo to speak to influential conservative group in Iowa MORE said late Thursday that rival Marco RubioMarco Antonio RubioDemocrats: It's Trump's world, and we're just living in it Cheese, wine importers reeling from Trump trade fight Peace Corps' sudden decision to leave China stirs blowback MORE would make a better president than Republican front-runner Donald TrumpDonald John TrumpSchiff blasts Trump for making 'false claims' about Russia intel: 'You've betrayed America. Again.' Poll: Sanders leads 2020 Democratic field with 28 percent, followed by Warren and Biden More than 6 in 10 expect Trump to be reelected: poll 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.