Mike Waltz, the former national security adviser who left his position in May in the wake of the Signal chat controversy in March, will face a confirmation hearing Tuesday on Capitol Hill for his nomination as United Nations ambassador.

Mike Waltz, President Donald Trump’s nominee for U.S. ambassador to the United Nations, is facing questioning Tuesday from lawmakers for the first time since he was ousted as national security adviser in the weeks after he mistakenly added a journalist to a private Signal chat used to discuss sensitive military plans.

As he faced tough questions from senators at a July 15 confirmation hearing, Waltz defended his use of the app, saying it was explicitly recommended for government use. Start the day smarter. Get all the news you need in your inbox each morning.

Did an aide to Congressman Mike Lawler pretend to be part of a Democratic opposition group and encourage its members to disrupt a town hall earlier this year? Members of the protest group “Fight Lawler” seem to think so.

Members of the group charged with attempting to murder two ICE agents met on a Signal group chat, according to court records