Marco RubioMarco Antonio RubioWhite House staggers after tumultuous 48 hours Erdoğan got the best of Trump, experts warn Hillicon Valley: GOP lawmakers offer election security measure | FTC Dem worries government is 'captured' by Big Tech | Lawmakers condemn Apple over Hong Kong censorship MORE ridiculed Donald TrumpDonald John TrumpPelosi arrives in Jordan with bipartisan congressional delegation Trump says his Doral resort will no longer host G-7 after backlash CNN's Anderson Cooper mocks WH press secretary over Fox News interview MORE's approach to finding Middle East peace, saying that Israeli-Palestinian talks are not like a real estate deal.

"The Palestinians are not a real estate deal, Donald," the White House contender said in Thursday night's CNN Republican debate in Houston.

ADVERTISEMENT

Rubio and Ted CruzRafael (Ted) Edward CruzHillicon Valley: GOP lawmakers offer election security measure | FTC Dem worries government is 'captured' by Big Tech | Lawmakers condemn Apple over Hong Kong censorship Lawmakers condemn Apple, Activision Blizzard over censorship of Hong Kong protesters The Hill's Morning Report — Trump's impeachment jeopardy deepens MORE both hit the billionaire businessman for saying that he would be a neutral broker in peace negotiations between the Israelis and the Palestinians.

Both Rubio and Cruz say they would stand unequivocally with Israel, while the party front-runner argues that neutrality is required to make what would be "probably the toughest deal of any kind."

"A deal is a deal," Trump replied, when Rubio made the point that Middle East peace talks had nothing to do with negotiating real estate.

Rubio hit back: "A deal is not a deal when you're dealing with terrorists. Have you ever negotiated with terrorists?"

Trump, who was under attack from the Florida senator all night, replied, "You are not a negotiator. And with your thinking you will never bring peace."

"Donald might be able to build condos in the Palestinian areas, but ... this is not a real estate deal," Rubio said to close the exchange.