Secretary of State Marco Rubio has been thrown into two top national security roles at once after President Donald Trump ...

President Donald Trump’s removal of national security adviser Mike Waltz brings further disruption to his national security ...

Fox News Digital took a look at whom President Donald Trump could select to replace former national security advisor Mike ...

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

There is a very real possibility that Trump keeps Rubio as both secretary of state and national security adviser, according ...

Trump said he's nominating Michael Waltz to be ambassador to the United Nations, while Secretary of State Marco Rubio will ...

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

National security adviser Mike Waltz is leaving his White House post, although soon after reports about his departure were ...

Marco Rubio will be the first person since Henry Kissinger in the 1970s to hold the positions of secretary of state and ...

Also, scientists are investigating metformin’s anti-aging abilities. Here’s the latest at the end of Thursday.

The newly appointed interim national security adviser is preparing to stay in that role for up to six months, a person close ...

President Donald Trump announced Thursday that he would nominate national security adviser Mike Waltz to serve as UN ...