President Trump said late Thursday he "will permanently pause migration from all Third World Countries to allow the U.S. system to fully recover."

The big picture: Trump has stepped up his hardline immigration crackdown since authorities identified an Afghan national as the suspect in Wednesday's deadly shooting attack on National Guard members. • Spc. Sarah Beckstrom, 20, died from her injuries Thursday and fellow West Virginia National Guard member Air Force Staff Sgt. Andrew Wolfe, 24, is "fighting for his life," Trump said.

State of play: U.S. Citizenship and Immigration Services suspended all immigration applications from Afghan nationals with immediate effect on Wednesday night. • USCIS announced Thursday that Trump had ordered a re-examination of every green card holder from 1

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