Nikki Haley

The Trump administration long has chafed at the dubious rights records of many council members and what it calls a "chronic bias against Israel." Now the U.S. is following through on threats to leave.

Haley, the U.S. ambassador to the United Nations, retweeted President Trump's support for a political candidate. CREW says that violated a law that bans federal employees from political activity.

Haley has accepted an offer from President-elect Donald Trump to lead the U.S. delegation to the United Nations. The position requires Senate confirmation.