Secretary of State Marco Rubio has been thrown into two top national security jobs at once as President Donald Trump presses ...

Mike Waltz just can’t seem to quit Signal. President Donald Trump’s outgoing national security adviser, the subject of ...

President Donald Trump has appointed Marco Rubio as the interim National Security Advisor of the United States. This appointment follows the resignation of Mike Waltz, who had held the position since ...

Rubio is taking over for Mike Waltz, who is set to become the United Nations ambassador. A diver on an expedition off the ...

US step back from peace talks and ‘won’t fly around world at drop of hat’ to mediate - It is now up to Russians and ...

President Donald Trump removed Mike Waltz as national security adviser and nominated him to be UN ambassador in the administration’s first major staff shake-up. Follow for live news updates.

Fox News senior strategic analyst Jack Keane joins 'Fox & Friends' to discuss Secretary of State Marco Rubio taking on both ...

Who will replace Mike Waltz? President Donald Trump's leading candidates as Secretary of State Marco Rubio steps in ...

Rubio's comments underscore the major remaining divisions in talks between the countries to resolve the long-running dispute over Iran's nuclear programme, with U.S. President Donald Trump threatening ...

The U.N. is urging its agencies in Geneva and New York to save costs by moving its staffers to cheaper cities and eliminating ...