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

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 ...

President Donald Trump removed Mike Waltz as national security adviser and nominated him to be UN ambassador in the ...

National security advisor Mike Waltz will be leave his post in the Trump administration, which comes on the heels of ...

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

Fox News senior strategic analyst Jack Keane joins 'Fox & Friends' to discuss Secretary of State Marco Rubio taking on both roles and what's to come for peace talks with Russia and Ukraine.

President Trump praised Waltz’s commitment to national interests and reforms at the National Security Council, suggesting his nomination is a promotion.

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 ...

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