The national security adviser's use of the messaging app is under scrutiny after he mistakenly added a journalist to a sensitive chat.

Amid the backlash to the Trump administration’s use of the private messaging app Signal for sensitive U.S. military planning in Yemen, Politico reported Wednesday that national security adviser Mike ...

Sources say the national security adviser and his team made at least 20 group chats on the commercial messaging app.

National security adviser Michael Waltz reportedly meant to add a Trump administration spokesman to the Signal chat where ...

WASHINGTON >> The team led by President Donald Trump’s national security adviser, Mike Waltz, set up at least 20 group chats on the commercial Signal app to coordinate official work on issues ...

Just seven days after the Signal chat scandal erupted, the White House announced that it doesn’t want to talk about it ...

Current and former US officials have told CNN they believe two texts sent by national security adviser Mike Waltz and CIA ...

White House national security adviser Michael Waltz's friends list on Venmo was open to the public to view as late as Tuesday — a day after the Atlantic report about the Signal chat was published.

President Donald Trump confirmed that multiple employees within the National Security Council were fired Thursday, adding to ...

This reveals a greater use of the app than previously known and highlights the extent to which the Trump administration’s ...

The White House has declared the controversy around a Signal chat for a military strike that inadvertently included a journalist to be “closed,” but the episode has left some in President Trump’s ...