U.S. immigration officials admit mistakenly deporting a Maryland man to El Salvador, sparking controversy and criticism from advocates.

Maiker Espinoza Escalona is being accused of being a member of the Venezuelan gang Tren de Aragua by the Trump administration, an accusation his family denies.

The Trump administration conceded in a court filing Monday that it mistakenly deported a Maryland father to El Salvador “because of an administrative error” and argued it could not return him because he’s now in Salvadoran custody.

Despite the mistake, officials said Kilmar Armando Abrego Garcia can't be brought back since he is no longer in U.S. custody.

The Trump administration is remaining firm in its stance to arrest a man following a report from The Atlantic that the federal attorneys said that there was an “administrative error."

The Trump administration said the court didn’t have the authority to order the return of Kilmar Abrego Garcia.

The “administrative error” that caused a Maryland man’s deportation to a notorious prison in El Salvador has prompted backlash in Congress and beyond.

A Maryland father who was deported to El Salvador is now suing Secretary of Homeland Security Kristi Noem, Acting Director of U.S. Immigration and Customs Enforcement Todd Lyons and several other officials.

The White House admits a "clerical error" was to blame for mistakenly deporting a Maryland man with protected legal status to a notorious El Salvador prison.