Secretary of State Marco Rubio’s new assignment as President Trump’s interim national security adviser brings him deeper into ...

Trump has acted to ensure that America speaks with one voice abroad — his own. That’s not a power grab. It is a reassertion ...

Germany’s foreign ministry hit back at U.S. Secretary of State Marco Rubio after he criticized the decision to classify the ...

The Alien Enemies Act was passed because the Founding Fathers understood that the president would need to be able to take ...

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

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

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

The former senator from Florida is now the head of four government bodies. He has outdone Henry Kissinger and even Xi Jinping ...

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

Donald Trump named Secretary of State Marco Rubio interim national security adviser and announced he will nominate Mike Waltz ...

Russian state media have reported Thursday that U.S. Secretary of State Marco Rubio may attend Moscow's May 9 celebrations in ...