Rice served in senior roles in the Clinton, Obama, and Biden administrations.

President Trump said Thursday he's nominating his national security advisor Mike Waltz to serve as United Nations ambassador in a major shake-up of his national security team. The president said ...

President Donald Trump said Sunday that he plans to appoint a new national security advisor in about six months, telling reporters the former advisor, Mike Waltz, did not resign, but was instead ...

Former National Security Advisor Jake Sullivan will be giving the commencement speech at University of New Hampshire’s Franklin Pierce School of Law. Sullivan, who owns a home in Portsmouth, served as ...

After 101 days on the job as national security adviser, Mike Waltz is President Donald Trump's pick to be the ambassador to the United Nations. The move follows an incident where Waltz accidentally ...

The same day that National Security Advisor Mike Waltz exited his job at the White House, President Donald Trump announced a new job offer for the former Florida congressman: United Nations ambassador ...

President Trump said Thursday he is removing Mike Waltz from his role as national security adviser and in the interim replacing him with Secretary of State Marco Rubio. Trump said he's nominating ...

WASHINGTON (AP) — President Donald Trump said Thursday he’s nominating his national security adviser Mike Waltz to serve as United Nations ambassador in a major shake-up of his national security team.

Former National Security Advisor Mike Waltz is poised to face members of the Senate Tuesday to get the ball rolling on his nomination to represent the U.S. at the United Nations. Waltz’s appearance ...