An unofficial version of Signal used by Mike Waltz, who was Donald Trump's National Security Adviser, was reportedly hacked. This has led to concerns that private messages shared at the top levels of ...

President Donald Trump floated his deputy chief of staff, Stephen Miller, as an option to be his next national security ...

The Democratic senator will not vote to confirm the ex-national security adviser, who she says is "failing up" after putting ...

US President Donald Trump has been questioned by a reporter over Mike Waltz after he left his role as the national security adviser. “He didn’t resign – I just moved him; there was no resignation. You ...

President Trump spoke to reporters from Air Force One Sunday night, answering questions from the national security advisor to an offer to send troops to Mexico to fight cartels.

Currently, top US diplomat Marco Rubio both heads the State Department and serves as the US leader's national security adviser ...

Mike Waltz was removed as national security advisor, followed by the president nominating him for another position.

President Trump tells reporters he may tap Stephen Miller to replace Mike Waltz, who was ousted after sharing sensitive Yemen ...

The unofficial Signal app used by ex-National Security Adviser Mike Waltz was reportedly hacked, exposing vulnerabilities in ...

U.S. President Donald Trump said on Sunday that Stephen Miller, his deputy chief of staff, was a frontrunner to be ...

Trump unveiled a major staff shakeup and announced that National Security Advisor Mike Waltz would depart his post at the ...

Trump was furious Sunday at what he called a "weak" case on his behalf from Media Buzz's Howard Kurtz, and called for the Fox host to retire.