Former national security adviser Michael Waltz in the Cabinet Room of the White House in March. Shawn Thew / EPA / Bloomberg ...

Mike Waltz, the national security adviser for President Donald Trump, is seen in photos using Signal during a Cabinet meeting ...

In March, the editor of the Atlantic magazine revealed that national security adviser Michael Waltz had inadvertently ...

Signalgate was the national security adviser’s most glaring mistake. But his problems ran deeper. After Michael Waltz, the ...

The Trump administration’s slash-and-burn approach to shrinking the size of the federal workforce may soon be coming to the ...

The national security advisor and his deputy are reportedly leaving their posts, after the former accidentally invited a ...

Marco Rubio will be the first person since Henry Kissinger in the 1970s to hold the positions of secretary of state and ...

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

The Trump loyalist faced scrutiny over a Signal chat he organized that mistakenly included The Atlantic journalist Jeffrey ...

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

Fired National Security Adviser Mike Waltz can‘t help but leak his Signal chats. Waltz, whose downfall was precipitated by ...

Former White House chief of staff Mark Meadows weighs in on President Donald Trump nominating national security advisor ...