U.S. National Security Adviser Michael Waltz inadvertently added The Atlantic's editor-in-chief, Jeffrey Goldberg, to a Signal group chat in which Trump administration officials discussed details ...

The fallout from “Signalgate” reached the Senate intelligence committee Tuesday, where Democrats lit into administration officials for a national security breach, while President Trump himself sought ...

Ms. Filipovic is a journalist, a lawyer and an author. By now, you’ve heard the story: Several of President Trump’s top national security officials used a publicly available nongovernmental messaging ...

The furor over a headline-making group chat consumed Washington for a second day on Tuesday. President Trump spoke to reporters from the White House about the matter, and it was also the focus of a ...

Republicans are struggling to defend the Signal group chat set up by Trump administration officials to discuss airstrikes against targets in Yemen. The chat, as the entire world now knows, mistakenly ...