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

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

US National Security Advisor Mike Waltz, who has faced calls to resign over his role in the recent Yemen chat group scandal, ...

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 ...

U.S. National Security Advisor Mike Waltz is under scrutiny for receiving work emails via a personal account, though he ...

The Washington Post is reporting that National Security Advisor Mike Waltz and his staff used their personal Gmail accounts ...

Mike Waltz's email usage has drawn ire from social media users after it was reported that the Trump administration cabinet ...

National security adviser Mike Waltz is also expected to visit the territory this week, according to a source familiar with the trip. Greenland Prime Minister Mute B. Egede called the US ...

The US Second Lady and Mr Waltz are part of a US delegation to the self-governing territory of Denmark in a trip regarded as highly provocative, given Donald Trump’s repeated call for the US to ...

Energy Secretary Chris Wright and national security adviser Mi ke Waltz will join Vance, the vice president's wife, as part of the U.S. delegation, two administration sources confirmed to NBC News.

The Trump administration is seeking the "full dismantlement" of Iran's nuclear program as it ramps up a U.S. military campaign in the Middle East, White House national security adviser Mike Waltz ...