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

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

The secretary of state, who has been steadily rising through the ranks under the orders of his former rival, is now taking ...

With four hats, including national security adviser, the former Trump rival is defying predictions he’d be a weak player.

A jolt of staff upheaval this week made Marco Rubio the first person in 50 years to hold the top two national security jobs in the US government, the culmination of a journey from his role as Donald ...

In a dramatic shift in fortunes, Rubio is the first person since Henry Kissinger to be both secretary of state and national ...

The New York Times reports Secretary of State Marco Rubio is now interim national security adviser to President Donald Trump, ...

In a sweltering Rose Garden on Thursday, as President Donald Trump intoned at length about restoring faith to the White House ...

U.S. President Donald Trump ousted his national security adviser Mike Waltz on Thursday and named Secretary of State Marco ...

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

After the removal of Mike Waltz as national security adviser, Marco Rubio now has four different roles in Donald Trump's ...

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