The Trump administration ousted national security advisor Mike Waltz and other staffers with the National Security Council, ...

President Donald Trump announced former national security advisor Mike Waltz as his choice to serve as ambassador to the U.N.

National security adviser Mike Waltz is leaving his White House post, although soon after reports about his departure were ...

Trump announced the moves shortly after news broke that Mike Waltz and his deputy Alex Wong were leaving the administration.

National security adviser Mike Waltz is out, with Secretary of State Marco Rubio replacing him on an interim basis. President ...

President Donald Trump says he is nominating national security adviser Mike Waltz as United Nations ambassador while ...

President Trump is tapping national security adviser Mike Waltz to be his ambassador to the United Nations following reports ...

Trump said he's nominating Michael Waltz to be ambassador to the United Nations, while Secretary of State Marco Rubio will ...

President Donald Trump said Thursday that he’s naming Secretary of State Marco Rubio as acting national security adviser to ...

The newly appointed interim national security adviser is preparing to stay in that role for up to six months, a person close ...

Mike Waltz has been nominated to serve as the next U.S. ambassador to the United Nations. In turn, there's renewed interest ...

Secretary of State Marco Rubio has been thrown into two top national security roles at once after President Donald Trump ...