Republicans have been mostly silent about Trump's attacks, which came after a week of feuding between House Speaker Nancy Pelosi and the four freshmen congresswomen who had been critical of the border funding deal Pelosi made with Republicans in the Senate and moderate House Democrats.
Three of the four were born in the United States and one moved to the United States as a child refugee.
Such a resolution could put Trump's fellow Republicans in Congress in an awkward position, forcing them either to vote against their party's leader, who has strong support among conservatives, or effectively to defend his statements. Ayanna Pressley (D-Mass.) have more generations of Americans in their ancestries than Trump, whose paternal grandfather and mother were immigrants. Rep.
Republican Senator Tim Scott, the only black Republican senator, said the president used "racially offensive language".
Republican Senator Lindsey Graham, a sometime Trump golf partner and adviser, called the four congresswomen "communist" and "anti-Semitic" on Fox News on Monday, but he also called on Trump to stop making such personal attacks.
House Republican Leader Kevin McCarthy said Democrats were playing politics. Senator Mitt Romney, the party's 2012 presidential nominee, and Senator Marco Rubio, who ran in 2016, both condemned the remarks but declined to characterize them as racist.
US authorities launched small-scale operations seeking to arrest undocumented immigrants over the weekend in an apparent start to Trump's vow to launch mass deportation round-ups across the country.
"This is simply a disruption, a distraction from the callous, chaotic and corrupt culture of this administration", said Pressley.
President Donald Trump speaks as tours the United States border with Mexico at the Rio Grande on the southern border, January 10, 2019, in McAllen, Texas, as Republican Senator John Cornyn of Texas, left, listens. As president, very little has happened on wall construction and Mexico has resolutely refused to pay for a wall.
"On Sunday morning, Trump tweeted that the "'Progressive' Democrat Congresswomen" should "go back" and help fix the "broken and crime infested" countries they came from and then return and "show us how it is done". "Come back if you want, don't come back, it's OK too".
Alexandria Ocasio-Cortez (left) speaks as Ayanna Pressley, Ilhan Omar and Rashida Tlaib listen during a press conference at the US Capitol. "I know that every single Muslim who has lived in this country and across the world has heard that comment and so I will not dignify it with an answer", she said, adding that she did not expect white community members to respond after a white man "kills in a school or a movie theatre or a mosque or a synagogue". "I think there's a strategy to divide the country because the more this country is divided, the more he benefits from it", she said.
Trump's tweets followed days of reported tensions between Pelosi and more progressive caucus members, such as Ocasio-Cortez, as they seek to build on their 2018 midterm victories.
One Republican ally of Trump's, Senator Lindsey Graham of SC, piled on, calling the women "communists" and "anti-American" as he also sought to nudge the president to focus on their policies.
Ocasio-Cortez also took aim at Trump over the weekend.
Trump, resurrecting language not prevalent in the USA for decades, said Monday that if the lawmakers "hate our country", they "can leave" it.