U.S. ambassador to the United Nations

In January 2025, following his presidential inauguration, Donald Trump formally nominated Elise Stefanik, who is currently serving in the United States House of Representatives, to be the next U.S. ambassador to the United Nations in his second term. Trump withdrew the nomination on March 27, 2025. On May 1, 2025, Trump announced via social media that he intended to nominate Mike Waltz to serve as the next U.S. ambassador to the UN. He was confirmed 47–43 by the Senate on September 19, 2025.