In March 2021, Senator Chuck Schumer recommended Peace to serve as the United States Attorney for the Eastern District of New York.[3] On August 10, 2021, President Joe Biden nominated Peace as the United States attorney for the Eastern District of New York.[4] On September 30, 2021, his nomination was reported out of committee by voice vote.[5] On October 5, 2021, the United States Senate confirmed his nomination by a voice vote.[6] On October 15, 2021, he was sworn in as United States Attorney for the Eastern District of New York by United States Chief District Judge Margo Kitsy Brodie.[7]
As U.S. Attorney for the Eastern District of New York, Peace successfully prosecuted social media influencer, Douglass Mackey, for conspiring to interfere in the 2016 elections by encouraging Twitter users who supported Hillary Clinton to vote via text message.[8]