Sen. Lindsey Graham on Monday suggested President Trump “knock it down a notch” when it comes to tweeting about Rep. Alexandria Ocasio-Cortez and her progressive colleagues in the House moments before he launched into a full-scale attack on the group.

“Mr. President, you’re going to win, just knock it down a notch,” the South Carolina Republican said on “Fox & Friends” when asked what Trump needs to do to be victorious in 2020.

“We all know that AOC and this crowd are a bunch of communists. They hate Israel. They hate our own country. They’re calling the guards along our border, the Border Patrol agents, concentration camp guards,” said Graham, an ally of the president.

He urged Trump to focus on criticizing Democratic policies rather than personal attacks against the group of minority Democrats known as “The Squad” — Reps. Rashida Tlaib, Ilhan Omar, Ayanna Pressley and Ocasio-Cortez.

Trump was blasted by Democrats on Sunday for tweeting that the four should “go back and help fix the totally broken and crime infested places from which they came.”

“I think they’re American citizens who are duly elected that are running on an agenda that is disgusting, that the American people will reject,”​ ​Graham said.

​Trump tweeted his support of Graham’s comments.

“Make them the face of the future of the Democrat Party, you will destroy the Democrat Party. Their policies will destroy our Country!​ @LindseyGrahamSC​,” Trump posted. “Need I say more?​”​

Ocasio-Cortez, who responded to Trump’s tweet on Sunday, called on Republicans to condemn the president’s remarks on Monday.

​”​Until Republican officials denounce yesterday’s explicitly racist statements (which should be easy!), we sadly have no choice but to assume they condone it​,” she said.

Of the four congresswomen Trump referred to in his tweet, three were born in the US.

​Omar was born in Somalia and was brought to the US when she was 12 by her family after they fled civil war in the African country.

All four are US citizens. ​