On December 18, 2021, the United States Senate confirmed his nomination by voice vote.[6] He was sworn in on December 21, 2021.[7] He presented his letters of credence to the President of the Swiss Confederation, Ignazio Cassis, on January 11, 2022.[8] On February 16, 2022, he presented his credentials to Alois, Hereditary Prince of Liechtenstein at Vaduz Castle.[9][10]