Attorney General Eric Holder will announce his resignation on Thursday, the Department of Justice has confirmed.

Having served under President Obama for nearly six years, Holder was the nation’s first African-American to hold the post as the nation’s top prosecutor and currently the fourth-longest serving AG in the nation’s history. Holder is expected to remain in the position until a replacement is announced by the president and confirmed by the Senate.

NPR was the first to report the news:

On aspects of his legacy, the Washington Post reports: