It is unclear how Waltz would approach the job. Trump’s first nominee, Rep. Elise Stefanik, had built a track record in Congress of criticizing the U.N. She vowed during her confirmation hearing in January to combat what she called antisemitism at the world body and lead a review of U.S. funding.

Former national security adviser Mike Waltz will testified before the Senate on Tuesday on his nomination for U.S. ambassador to the United Nations. Waltz, who left his previous post in May after