Sen. Chris Van Hollen said he was boarding a flight to El Salvador where he hopes to meet with officials to discuss Kilmar Abrego Garcia’s return.

Later in 2019, a U.S. immigration judge shielded Abrego Garcia from deportation to El Salvador because he likely faced persecution there by local gangs that had terrorized his family. The Trump administration deported him there anyway, later describing the mistake as “an administrative error” but insisting he was in MS-13.

A Maryland man’s efforts to return to the US after being mistakenly deported to El Salvador last month hit a major new roadblock on Monday when the country’s president vowed to keep the father of three locked in a notorious mega-prison.