A similar surge last year resulted in undervetted officers initially being let in and then removed as the agency skipped basic checks for new recruits.
ยฉ Todd Heisler/The New York Times
Immigration and Customs Enforcement in Newark, N.J. in May. The agency has staffed up drastically since President Trump took office, growing by about 8,000, to reach 29,000 employees as of July, according to federal data.