Waltz inadvertently added The Atlantic's editor-in-chief to a group thread discussing sensitive national security matters.

The move by Trump comes after hours of speculation that Mike Waltz was about to lose his job as national security adviser.

White House national security adviser Mike Waltz is leaving the Trump administration just weeks after it was revealed he ...

Beast’s impeccably sourced David Rothkopf reveals the inside story of Waltz’s exile—and what it tells us about his boss.

The knives were out for the national-security adviser from the start.

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

The president says Waltz, who started the leaked Signal chat, will be nominated as US ambassador to the UN and be temporarily ...

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

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

President Donald Trump is replacing his National Security Adviser, Mike Waltz, and nominating him to be Ambassador to the ...