National Security Adviser Mike Waltz speaks in the Cabinet Room on March 25. Photo: Shawn Thew/EPA/Bloomberg via Getty Images ...

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

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

In a startling revelation, National Security Adviser Mike Waltz has reportedly used his personal Gmail account for government communications, as reported by The Washington Post. This alarming ...

Waltz’s team had set up at least 20 Signal group chats dedicated to discussing international crises, Politico reported ...

Waltz Team Set up 20 Signal Chats on Global Issues, Politico Reports WASHINGTON (Reuters) -The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 ...

National Security Adviser Mike Waltz reportedly had his team set at least 20 Signal chats for other crises across the globe, ...

Amid the backlash to the Trump administration’s use of the private messaging app Signal for sensitive U.S. military planning ...

Mike Waltz has been in the spotlight since he created a group chat on the messaging app Signal to discuss sensitive ...

The report indicates a far more extensive use of the Signal app by Trump's national security team than previously reported.