Senate Minority Leader Chuck Schumer (D-N.Y.) on Tuesday called for Labor Secretary Alex Acosta’s resignation over his 2008 approval of a deal that allowed hedge fund manager Jeffrey Epstein to avoid federal charges for allegedly soliciting and molesting minors.

“The newly released evidence of Epstein’s behavior involving dozens of children is sickening, is appalling, is despicable,” Schumer said on the Senate floor. “Epstein should have been behind bars years ago.”

Epstein, 66, was arrested Saturday for sex trafficking charges and taken into custody by federal agents and New York City police officers. The new charges included allegations of paying minors for sex since as early as 2002 as part of a scheme in New York and Florida.

His arrest brought new scrutiny to Acosta, who agreed about a decade ago as a U.S. attorney in Miami to end the federal investigation into Epstein’s alleged solicitation of prostitution. He offered Acosta a non-prosecution agreement, which Schumer called a “sweetheart deal.” The hedge fund manager faced only state charges and 13 months in prison after pleading guilty.

Acosta commended New York prosecutors for reopening Epstein’s case in a tweet Tuesday morning.