Marco RubioMarco Antonio RubioHere are the Senate Republicans who could vote to convict Trump TikTok's leader to meet with lawmakers next week GOP senators unveil bill to expand 'opportunity zone' reporting requirements MORE ridiculed Donald TrumpDonald John TrumpLawmakers prep ahead of impeachment hearing Democrats gear up for high-stakes Judiciary hearing Warren says she made almost M from legal work over past three decades 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.

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Rubio and Ted CruzRafael (Ted) Edward CruzDemocrats express confidence in case as impeachment speeds forward Chuck Todd challenges Cruz after senator pushes theory that Ukraine meddled in election Sunday shows — Nadler: A jury would convict Trump in 'three minutes flat' 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.