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

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

The National Security Council (NSC) has provided clarification on reports about Mike Waltz and his staff using personal Gmail accounts for government communications.

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 ...

Reports of 20 Signal chats and Waltz’s Gmail mark at least four major security liabilities uncovered since Signalgate.

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

House Homeland Security Committee ranking member Bennie Thompson (D-Miss.) said that Gmail is "far less secure than Signal.

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

A US political news outlet says National Security Advisor Mike Waltz and his team "regularly" created group chats on the ...

WASHINGTON >> The team led by President Donald Trump’s national security adviser, Mike Waltz, set up at least 20 group chats ...

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