A Justice Department lawyer conceded that $4M in U.S. "grants" were funding the detention of men deported to El Salvador.

A federal judge pressed the Justice Department on President Donald Trump’s suggestion that he could secure the return of migrants deported to a Salvadoran super prison, during a Wednesday evening hearing where the judge approved more fact-finding into whether the US has custody over the migrants it sent to the prison.

Boasberg is determining whether people deported to El Salvador should be returned and, if so, what role the U.S. has in facilitating this.