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.

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

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

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

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

WASHINGTON − Mike Waltz is out as President Donald Trump's national security adviser and is instead his new nominee for ambassador to the United Nations in a major shake-up of Trump's national ...

Donald Trump appointed Mike Waltz to be the next U.S. ambassador to the United Nations after stripping him of his original title as the White House national security adviser ...

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