President Donald Trump launched a racist attack Sunday on several unnamed “‘Progressive’ Democrat Congresswomen,” whom he said should “go back and help fix the totally broken and crime infested places from which they came.” The targets of his tweets were widely presumed to be Representatives Alexandria Ocasio-Cortez of New York, Ilhan Omar of Minnesota, Ayanna Pressley of Massachusetts and Rashida Tlaib of Michigan, all women of color.

Trump’s tweet claimed the congresswomen “originally came from countries whose governments are a complete and total catastrophe,” even as only Rep. Omar was born anywhere other than the United States of America—Mogadishu, Somalia. Ocasio-Cortez was born in New York, while Pressley was born in Cincinnati and Tlaib was born in Detroit. Omar became a U.S. citizen in 2000 when she was 17 years old.

It is unclear exactly what Trump was responding to overall, as the subsequent tweet claimed the congresswomen were “viciously telling the people of the United States, the greatest and most powerful Nation on earth, how our government is to be run.” All four congresswomen have been vocal critics of the president’s immigration policies. After his suggestion that the unnamed congresswomen should “go back and help fix the totally broken and crime infested places from which they came,” however, Trump added in a third tweet: “I’m sure that Nancy Pelosi would be very happy to quickly work out free travel arrangements!”

Invoking Pelosi would seem to single out the Speaker’s recent spats with the freshman lawmakers, in which Pelosi was accused of racial blindness in sidelining women of color in her caucus, and Pelosi defenders accused her critics of using the race card. Trump has been happy to foment the divisions, siding with Pelosi in public statements regarding caucus infighting.

Ironically, Trump’s attack may help heal the divide. “When @realDonaldTrump tells four American Congresswomen to go back to their countries, he reaffirms his plan to ‘Make America Great Again’ has always been about making America white again,” Pelosi wrote Sunday on Twitter. “Our diversity is our strength and our unity is our power. “Rather than attack Members of Congress, he should work with us for humane immigration policy that reflects American values.”

Frequent Trump critic Rep. Justin Amash, who recently left the GOP, was similarly critical of Trump’s comments. “To tell these American citizens (most of whom were born here) to ‘go back’ to the ‘crime infested places from which they came’ is racist and disgusting,” he wrote.