Donald Trump appointed Mike Waltz to be the next U.S. ambassador to the United Nations after stripping him of his original ...

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

Mike Waltz, who played a central role in the Signal-gate, is now out as Trump's National Security Advisor, but why did he decide to resign?

P resident Donald Trump is replacing his National Security Adviser, Mike Waltz, and nominating him to be Ambassador to the United Nations, he announced Thursday, marking the first major personnel ...

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

Waltz's deputy, Alex Wong, who was also ousted this week, reportedly remains at the National Security Council.

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

US President Donald Trump on Thursday announced the replacement of national security adviser Mike Waltz, stating that he would be nominated as the nex.

Two sources told The Washington Post that Trump had been frustrated with Waltz over foreign policy for months, and that ...

Welcome to the online version of From the Politics Desk, an evening newsletter that brings you the NBC News Politics team’s latest reporting and analysis from the White House, C ...

President Donald Trump's outgoing national security adviser Mike Waltz was photographed using Signal on his phone during Wednesday's Cabinet meeting.

Donald Trump has announced he is removing his national security adviser, Mike Waltz, and appointing him instead to the role of UN ambassador. The announcement followed hours of breathless ...