Mike Waltz, President Donald Trump’s nominee for U.S. ambassador to the United Nations, appeared before the Senate Foreign Relations Committee on Tuesday for his confirmation hearing.

Waltz is a former Green Beret and Florida representative who resigned from Congress to join the Trump administration. He served as national security adviser for roughly three months. Trump reshuffled his team and named Secretary of State Marco Rubio acting national security adviser on May 1.

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President Donald Trump’s nominee for U.S. ambassador to the United Nations is facing questioning from lawmakers for the first time since he was ousted as national security adviser

N.J., launched an attack against former National Security Advisor Mike Waltz for not taking greater accountability for his role in a Signal group chat used to discuss strikes against the Houthis.