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

U.S. President Donald Trump's national security adviser has never used his personal email account to send classified material ...

Last week, the White House said the National Security Council, the White House counsel office and President Trump adviser ...

The White House considers the Signal chat leak case "closed," press secretary Karoline Leavitt told the media Monday.

The Trump administration sought to put the scandal over its use of the Signal messaging app behind it on Monday, calling it ...

The White House said Monday it has concluded its review into how a journalist was added to a Signal message group chat, as ...

When Donald Trump selected Mike Waltz to serve as national security adviser, the choice was widely seen as win-win: A combat ...

Rep. Seth Moulton has criticized the Trump administration for its response to the use of Signal by high-level officials to ...

Democrats on the House Intelligence Committee on Monday requested an independent assessment into Trump administration ...

White House sources keep going to news organizations with damaging details about National Security Advisor Mike Waltz.

Rep. Ro Khanna joins The Lead ...

There are plenty of lingering questions about the "Signalgate" fiasco. Donald Trump and his team are apparently no longer ...