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.

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