The former White House chief of staff Mark Meadows, who served under Donald Trump, has complied with a subpoena from the justice department investigation into the events surrounding the January 6 attack on the Capitol, CNN reported on Wednesday.

That makes him the highest-ranking Trump official known to have responded to a subpoena in the federal investigation, CNN said.

The attack on the Capitol by Trump supporters led to several deaths, injured police officers and delayed certification of Joe Biden’s victory over Trump in the 2020 election.

Meadows provided the same materials he gave to the House January 6 committee, satisfying the obligations of the subpoena, CNN reported, citing an unnamed source.

Meadows initially cooperated with the January 6 committee in 2021 but later sued over the subpoenas.

The US House of Representatives earlier this year voted to refer Meadows to the justice department for contempt of Congress. The department declined to charge him.

Reuters could not immediately contact Meadows for comment. George Terwilliger, a lawyer who represents Meadows, did not immediately respond to an e-mailed request for comment.