Democratic leaders of key House committees are reigniting calling for National Security Advisor Mike Waltz to step down.

National Security Advisor Michael Waltz and a senior aide used personal Gmail accounts for government communications, ...

Trump’s national security adviser is trying to manage his way out of a crisis. But new revelations about his team’s ...

Mike Waltz faces criticism for using Gmail for official duties, with concerns raised about the management of sensitive ...

Senior members of the Trump administration’s National Security Council — including its top national security adviser, Michael ...

Michael Waltz allegedly used personal Gmail account for government communications. A senior aide reportedly used Gmail to ...

Gmail is even less secure than Signal, the encrypted messaging app that’s available to the public. The use of the email service is the most recent instance of top national security officials ...

Last week, National Security Advisor Michael Waltz inadvertently invited a journalist to a Signal chat discussing a planned ...

The White House’s assertion that the case is closed surrounding national security officials’ use of Signal is getting ...

The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the ...