Retired Lt. Gen. H.R. McMaster, a CBS News contributor who served as national security adviser in President Trump's first ...

The Signal group chat scandal and Waltz’s hawkish stance on Iran are being touted as the reasons for his ouster as NSA.

A former official in Donald Trump's first administration who served as both national security adviser and ambassador to the ...

Trump’s White House purge is making headlines after he abruptly fired National Security Adviser Mike Waltz. Reports suggest a ...

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

President Trump reportedly wasn’t “happy” about his national security adviser’s hawkish stance on striking Iran nuclear sites ...

President Donald Trump has ousted National Security Adviser Mike Waltz and announced that he will nominate him as the next ...

U.S. President Donald Trump ousted his national security adviser Mike Waltz on Thursday and named Secretary of State Marco ...

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 ...

P resident Donald Trump is replacing his National Security Adviser, Mike Waltz, and nominating him to be Ambassador to the ...

The national security adviser infamously added The Atlantic's Jeffrey Goldberg to a Signal group chat discussing Yemen attack ...