The Trump administration says the group should be treated as an invading force. Critics say it’s a pretext for the administration’s anti-immigrant narrative.

On Monday, the Department of Homeland Security announced that it had also revoked the work visa of Brown University professor Rasha Alawieh and denied her reentry into the U.S. after she attended the funeral of Hezbollah leader Hassan Nasrallah in Lebanon.

President Donald Trump thanked the country of El Salvador and its president, Nayib Bukele, for accepting members of the MS-13 and Tren de Aragua gangs, calling them “monsters” who were only in the country because of “Crooked Joe Biden and the Radical Left Democrats.