Sen. Mark Warner (D-Va.) predicts that former national security adviser Mike Waltz will face a “brutal” confirmation hearing ...

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

The fired national security adviser engaged in intense coordination with Israeli Prime Minister Benjamin Netanyahu about ...

There are some hurdles former National Security Advisor Mike Waltz must clear first before the United Nations ambassador job ...

President Donald Trump’s removal of national security adviser Mike Waltz brings further disruption to his national security ...

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

Mike Waltz was photographed using Signal in a Cabinet meeting the day before Trump announced he was replacing him as national ...

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

More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen using what ...

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 ...

Former national security adviser Michael Waltz in the Cabinet Room of the White House in March. Shawn Thew / EPA / Bloomberg ...