Linda Thomas-Greenfield was sworn in as U.S. ambassador to the United Nations. She was confirmed by the Senate on Tuesday. She is the third African-American, and the second African- American woman, to hold the U.N. post. She will present her credentials to UN Secretary-General António Guterres on Thursday.
The new ambassador’s portfolio has been elevated to a ministerial rank, making her a target for criticism. Trump has pulled the US out of key agencies such as UNESCO and the World Health Organization and reneged on key international agreements such as the Iran nuclear deal.