Secretary Rubio’s new role as national security adviser may be unsustainable, according to foreign policy experts.

CNN anchor Kasie Hunt lost her patience on live TV, as Marco Rubio’s spokeswoman Tammy Bruce dodged almost all of the ...

White House Deputy Chief of Staff Stephen Miller heaped lavish praise on Secretary of State Marco Rubio, comparing him to ...

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

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

President Trump, who has frequently raised the idea of pursuing a third term in defiance of the Constitution, told “Meet the ...

Germany’s Foreign Ministry has responded forcefully to U.S. Secretary of State Marco Rubio's criticism of the country's ...

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

Secretary of State Marco Rubio’s declaration last week that foreign policy “belongs” solely to the Executive Office of the ...

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

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

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