A hacker managed to breach TeleMessage, a company that sells a modified version of Signal to the US government. Mike Waltz ...

In a continuation of Signalgate, Hegsgeth came under scrutiny again last month, when the Washington Post reported that he not ...

President Donald Trump says he is nominating national security adviser Mike Waltz as United Nations ambassador while ...

The clone, TeleMessage, was the subject of a reported hack in which the contents of some direct messages and group chats were ...

President Donald Trump has gone through his share of national security advisers. But he doesn't hold the record, yet.

President Donald Trump's National Security Advisor Mike Waltz and other staffers are out at the National Security Council, ...

National Security Adviser Mike Waltz is leaving the Trump Administration after he added The Atlantic's Goldberg to a Signal ...

Defense Secretary Pete Hegseth faces a Pentagon watchdog investigation over use of the Signal app to share details of planned ...

Who will replace Mike Waltz? President Donald Trump's leading candidates as Secretary of State Marco Rubio steps in ...

Waltz was at the center of the Signal chat controversy, in which a journalist was accidentally included in a discussion of ...

Waltz was among high-ranking members of the administration who accidentally shared plans about a forthcoming U.S. military ...

White House national security adviser Mike Waltz is leaving the Trump administration just weeks after it was revealed he ...