A jolt of staff upheaval this week made Marco Rubio the first person in 50 years to hold the top two national security jobs ...

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

Secretary of State Marco Rubio is taking over for Michael Waltz as National Security Adviser, but Rubio is keeping his main job and other roles.

U.S. Secretary of State Marco Rubio is set to replace Mike Waltz as the President's National Security Advisor, reports ...

U.S. Secretary of State Marco Rubio is set to replace Mike Waltz as the President's National Security Advisor, reports ...

The fired national security adviser engaged in intense coordination with Israeli Prime Minister Benjamin Netanyahu about ...

US Secretary of State Marco Rubio is set to replace Mike Waltz as the president's national security adviser, reports Politico ...

The president said Secretary of State Marco Rubio will serve simultaneously as acting national security adviser while ...

National security adviser Mike Waltz is out, with Secretary of State Marco Rubio replacing him on an interim basis. President ...