• Article II, Section 2, paragraph 2 of the U.S. Constitution:
[The President] ? shall nominate, and by and with the Advice and Consent of the Senate, shall appoint Ambassadors ?
• One of the officials that requires Senate confirmation is the United States' Permanent Representative to the United Nations. As this person generally holds Ambassadorial rank the common shorthand is Ambassador to the U.N.
• The person who currently holds that position is Susan E. Rice. Ambassador Rice was, as we say, "floated" as the next Secretary of State when the current Secretary, Hillary Clinton resigns - perhaps to...