A group of libertarian and conservative lawyers that formed to counter alleged transgressions of legal norms by the Trump administration issued a statement Monday condemning tweets from the president that urged four minority female Democratic House members to “go back” to their home countries.

Trump’s tweets, saying four freshmen members of the U.S. House should “fix” their home countries before criticizing the U.S., deeply angered Democrats but left Republicans largely silent. All four of the lawmakers are U.S. citizens, and three of them were born in the United States.