Sen. Lindsey GrahamLindsey Olin GrahamGraham asks colleagues to support call for China to close wet markets Justice IG pours fuel on looming fight over FISA court Trump says he's considering restricting travel to coronavirus 'hot spots' MORE (R-S.C.) said there's only one person Republican presidential front-runner Donald TrumpDonald John TrumpPelosi eyes end of April to bring a fourth coronavirus relief bill to the floor NBA to contribute 1 million surgical masks to NY essential workers Private equity firm with ties to Kushner asks Trump administration to relax rules on loan program: report MORE can win against in a general election: Lucifer.

"I think Lucifer may be the only person Trump can beat in a general election," the former GOP presidential candidate said on CBS's "Face The Nation" in an interview that aired Sunday.

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"When it comes to women and Hispanics, Trump polls like Lucifer, so this is a contest between conservatism and Trumpism, and Trumpism will get creamed in the ballot box."

Former Speaker John BoehnerJohn Andrew BoehnerMeadows joins White House in crisis mode Meadows set to resign from Congress as he moves to White House The Pelosi administration MORE (R-Ohio) called Trump's rival, Texas senator Ted CruzRafael (Ted) Edward CruzOvernight Energy: Oil giants meet with Trump at White House | Interior extends tenure of controversial land management chief | Oil prices tick up on hopes of Russia-Saudi deal Oil giants meet at White House amid talk of buying strategic reserves Florida sheriff asks for new leads in disappearance of Carole Baskin's former husband after Netflix's 'Tiger King' drops MORE, “Lucifer in the flesh” during a speech last week.

Graham, who has thrown his support behind Cruz and repeatedly attacked Trump, also slammed Trump's foreign policy after the front-runner made a speech last week advocating for an "America first" approach.

He advised his Republican colleagues to distance themselves from Trump.

"Be your own person. Reject Donald Trump's approach to solving immigration, because it won't work and it's hateful," he said.

"Establish your own persona and your own relationship with American women voters. Embrace conservatism, reject Trumpism," he continued.

"To my Republican colleagues, distance yourself as much as you can from Donald Trump, because he's toxic for conservatism."