At the heart of the Trump administration’s Signal scandal lies the familiar psychological pitfall of groupthink ...

The Trump administration sought to put the scandal over its use of the Signal messaging app behind it on Monday, calling it ...

Democrats on the House Intelligence Committee on Monday requested an independent assessment into Trump administration ...

A majority of voters say holding a discussion of plans to attack the Houthis in Yemen on the messaging app Signal was wrong, ...

US Senate Intelligence ranking member Mark Warner, a Democrat from Virginia, alleged on Sunday that "the Chinese, the Russians, are trying to go after Signal," the encrypted messaging app reportedly ...

New York Times columnist David Brooks and columnist Ruth Marcus join Geoff Bennett to discuss the week in politics, including ...

The Trump White House’s reflexive attempt to attack the messenger, on the other hand, is an illustration of the new ...

Nahal Toosi is POLITICO’s senior foreign affairs correspondent. She has reported on war, genocide and political chaos in a career that has taken her around the world. Her reported column, Compass, ...

Trump, you may love Michael Waltz. You love Pete Hegseth. You may love these guys. Somebody has to go down,” David Portnoy ...

Read a line-by-line analysis of the war plans shared over a Signal group chat, with additional reporting and context from CNN national security reporters.

The immediate reaction to attack plans leaked to Jeffrey Goldberg from political and military intelligence analysts is that ...

The attempts by President Donald Trump and top leaders of his administration to downplay a security breach that revealed ...