Former Attorney General Bill Barr arrived on Capitol Hill Monday for a closed-door interview with lawmakers as part of the House Oversight Committee’s investigation into Jeffrey Epstein’s sex trafficking crimes, the Justice Department’s handling of an investigation into him, and his death in federal custody.

Barr, who twice served as attorney general and led the Justice Department during President Donald Trump’s first term, was subpoenaed by Oversight Committee Chairman James Comer (R-KY) earlier this month. His appearance marks the first interview in a sweeping inquiry that also targets former President Bill Clinton, former Attorney General Eric Holder, and former FBI Director James Comey. Barr arrived one hour early for the interview, answering no questions from reporters in the hallway.