CNN put out a call for Republicans to weigh in on President Trump's controversial tweet targeting a group of progressive Democratic lawmakers, as many members of the president's party refrain from commenting on the remarks.

In a tweet, CNN's John Berman called for GOP members of Congress to call in and respond to "the President's racist comments."

"The phone lines are open. If you are a Republican member of Congress who has issues with the President's racist comments this weekend, we will take your call," Berman tweeted.

THIS MORNING: The phone lines are open. If you are a Republican member of Congress who has issues with the President's racist comments this weekend, we will take your call.@NewDay — John Berman (@JohnBerman) July 15, 2019

Trump's Sunday tweets, which suggested a group of Democrats "go back and help fix the totally broken and crime-infested places from which they came," have ignited a political firestorm.

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The tweets appeared to attack a group of progressive freshman lawmakers: Reps. Alexandria Ocasio-Cortez (D-N.Y.), Ilhan Omar (D-Minn.), Rashida Tlaib (D-Mich.) and Ayanna Pressley (D-Mass.), all of whom are U.S. citizens. Omar is the only one of the four not born in the United States. She came to the U.S. after leaving Somalia as a refugee with her family at age 12.

Democrats have widely denounced the tweets as racist.

Some Republicans have weighed in, but the party has not widely criticized the president or deemed his comments racist.

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Maryland Rep. Andy Harris Andrew (Andy) Peter HarrisCongressman who denounced mask wearing overseeing the trial of a drug to treat COVID-19 Pelosi must go — the House is in dire need of new leadership Ukraine language in GOP platform underscores Trump tensions MORE (R) defended the president, saying the tweets are "obviously not racist."

Sen. Lindsey Graham Lindsey Olin GrahamSteele Dossier sub-source was subject of FBI counterintelligence probe Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Key Democrat opposes GOP Section 230 subpoena for Facebook, Twitter, Google MORE (R-S.C.), one of Trump's closest allies on Capitol Hill, said Trump should "knock it down a notch" and urged him to "aim higher" in his attacks.