Signalgate was the national security adviser’s most glaring mistake. But his problems ran deeper. After Michael Waltz, the ...

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

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

President Donald Trump announced he will nominate Mike Waltz to be the next U.S. ambassador to the United Nations just hours after reports came out that the national security adviser was getting ...

President Donald Trump announced Thursday that he would nominate national security adviser Mike Waltz to serve as UN ambassador, after widespread reports that Trump planned to oust him, in the first ...

There are some hurdles former National Security Advisor Mike Waltz must clear first before the United Nations ambassador job is his — including undergoing a Senate confirmation process.

Mike Waltz had faced criticism for mistakenly adding a journalist to a chat group where sensitive military plans were discussed.

A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials. "I don't even know where to start with this," says one expert.

The president says Waltz, who started the leaked Signal chat, will be nominated as US ambassador to the UN and be temporarily replaced by Secretary of State Marco Rubio.

President Donald Trump has removed Mike Waltz as national security adviser and instead will nominate him for United Nations ambassador.

More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen using what appears to be a different messaging app to message others in the Trump ...

Signalgate may have been the tipping point for national security adviser Mike Waltz, but his downfall began before he accidentally added a journalist to a private chat about a U.S. attack on Yemen.