Marco Rubio will be the first person since Henry Kissinger in the 1970s to hold the positions of secretary of state and ...

Reports say President Donald Trump will nominate National Security adviser Mike Waltz to become the nation's ambassador to ...

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

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

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

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

Waltz was at the center of the Signal chat controversy, in which a journalist was accidentally included in a discussion of ...

White House national security adviser Mike Waltz is set to depart the administration, according to two people familiar with ...

Waltz came under scrutiny after revelations that he added a journalist to a private text chain about military operations.

By Steve Holland, Gram Slattery and Erin Banco WASHINGTON The National Security Council did not immediately reply to a ...

President Donald Trump announced Thursday that he would nominate national security adviser Mike Waltz to serve as UN ...