Graham, a foreign policy hawk, said Republicans who now oppose former President Donald Trump’s bid for president have turned their backs on the party for the “most radical nominee” that the Democratic Party has ever had.

“To every Republican supporting her — what the hell are you doing? You’re supporting the most radical nominee in the history of American politics,” Graham said Sunday in an interview with NBC’s “Meet the Press” host Kristen Welker. 

“The Green New Deal, Medicare for All — she was the last person in the room before Biden decided to withdraw from Afghanistan. She was the border czar. She cast a tiebreaking vote for the Inflation Reduction Act that gives you high prices,” Graham said.

“You’re trying to convince me that Donald Trump’s rhetoric is the danger to this country? The danger to this country is the policies of [President Joe Biden] and Harris. Her fingerprints are all over this disaster, and I can’t take four more years of this crap,” said Graham.

WATCH: Sen. Lindsey Graham (R-S.C.) slams Republicans backing Kamala Harris for president.@LindseyGrahamSC: “What the hell are you doing? … I can’t take four more years of this crap.” pic.twitter.com/AyNUjP7rCE

— Meet the Press (@MeetThePress) October 20, 2024

Trump’s rhetoric has amped up in recent weeks after he began to tout earlier this month that, if elected, he would use the military to go after “the enemy from within.”

The reference was first made against Rep. Adam Schiff (D-CA), though Trump has since expanded the use to say he would go after “radical-left lunatics.”

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Graham appeared unphased by Trump’s comments and maintained that the Republicans were “winning, and going to win, not because of what Donald Trump’s saying, but because of what they’ve done for four years.”

Though at times during the Trump administration, Graham and Trump butt heads, the South Carolina senator has been an ardent supporter of Trump.