Mike Waltz's exit from the Trump administration comes on the heels of the Signal chat scandal. Here's what happened.

As sources on Thursday confirmed Mike Waltz’s exit from his post as national security adviser, the impact of the U.S.

U.S. President Donald Trump said on Thursday that he is nominating national security adviser Mike Waltz to be the next U.S.

Defense Secretary Pete Hegseth faces a Pentagon watchdog investigation over use of the Signal app to share details of planned ...

President Trump recently discouraged the use of the Signal app after controversy over a group chat of administration ...

President Trump also closed a major shipping loophole that allowed Americans to purchase cheap goods from China without paying tariffs ...

Mike Waltz was photographed using Signal in a Cabinet meeting the day before Trump announced he was replacing him as national security adviser.

Democrats on the Foreign Relations Committee, the panel that will weigh Mike Waltz’s nomination for United Nations ambassador ...

The Trump adviser responsible for the Signal group chat that became a national security scandal is being replaced and ...

Maritsa Georgiou, who hosts the podcast "Grounded" with former Sen. Jon Tester, beaks down the week's top political headlines ...

A little over three months into his stint as President Donald Trump's national security adviser, Mike Waltz was embroiled in a controversy ... messaging application Signal to discuss highly ...