No.
Though federal officials in 2024 acknowledged that immigrants with possible ties to ISIS had been arrested in the U.S. — and that others had entered the country through an ISIS-affiliated human smuggling network — those links were not known at the time of the individuals’ admission. Customs and Border Patrol’s initial vetting of the arrivals did not raise any red flags, according to the Department of Homeland Security.
Once federal authorities, through counter-terrorism initiatives, identified the potential ties to terrorist organizations like ISIS, Immigration and Customs Enforcement pursued arrests.
Federal law generally prohibits anyone believed to be a member of a designated terrorist organization, as well as anyone who has engaged in what the U.S. considers terrorism-related activities, from entering the United States.
This fact brief is responsive to conversations such as this one.
The Arizona Center for Investigative Reporting partners with Gigafact to produce fact briefs, or quick-response fact checks, about trending claims relating to Arizona.