Kilmar Abrego Garcia, a Salvadoran immigrant who the Trump administration admitted was mistakenly deported back to his home country, has been returned to the U.S. to face two federal criminal counts that were detailed in an indictment unsealed on Friday.

Kilmar Abrego Garcia’s case started quietly, boiling down to a clerical error that moved him up on a list to land on a deportation flight destined to El Salvador in March. And then a court filing from the Trump Justice Department acknowledging the mistake brought it to the national forefront – culminating in a fraught legal battle and heated political debate.