President Donald Trump’s former national security adviser has begun reaching out to allies on the Senate Foreign Relations ...

Mike Waltz, Trump's national security advisor, is leaving the White House weeks after he accidentally added a journalist to a ...

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

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

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

President Donald Trump says he is nominating national security adviser Mike Waltz as United Nations ambassador while ...

Perhaps it’s no surprise that Donald Trump —who has redone the Oval Office in neo-Versailles gold, claimed monarchical powers ...

Reports of Mike Waltz's exit as national security advisor focused on Signalgate, but President Donald Trump has nominated him ...

"I think it will be a brutal confirmation hearing," Sen. Mark Warner said of Mike Waltz. "I think he's going to have tough ...

Welcome to the online version of From the Politics Desk, an evening newsletter that brings you the NBC News Politics team’s ...

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

Mike Waltz will be nominated as U.S. ambassador to the U.N., while Secretary of State Marco Rubio will take on the added role ...