US President Donald Trump is serious about seeking to buy Greenland, Secretary of State Marco Rubio said Thursday, after Denmark was rattled by his threats to take over the autonomous Danish territory.

Former U.S. senator from Florida Marco Rubio jumps into new role as secretary of state with flurry of phone calls, planned trip to Panama.

US Secretary of State Marco Rubio spoke with Deputy Premier and Foreign Minister Antonio Tajani stressing the importance of the U.S.-Italy alliance to the safety, security, and prosperity of the American people,

A Taliban envoy cautioned U.S. Secretary of State Marco Rubio against rising tensions with threats of bounties on Afghan leaders.

There’s a new sheriff in town. Trump’s election means a new Secretary of State; the world’s most powerful foreign minister is now a Republican. Out goes Anthony Blinken, Joe Biden’s

Both sides agree that it will be Trump who decides if Rubio is MAGA enough to remain a member of his administration and represent his views around the world. He unceremoniously fired his first secretary of State, Rex Tillerson, via tweet, and has long made clear he views foreign policy as his domain.

European Union foreign policy chief Kaja Kallas and U.S. Secretary of State Marco Rubio discussed the Ukraine war, Iran and China on Tuesday in their first phone call since the Trump administration took office on Jan.

Florida Sen. Marco Rubio was confirmed by the Senate to be the next secretary of state Monday night, making him the first of President Trump's Cabinet picks to receive congressional approval.

U.S. Secretary of State Marco Rubio's trip to Central America, including Panama, is partially about countering China, a State Department spokesperson told Fox Business, as new President Donald Trump is pushing to "take back" the Panama Canal.

The Senate approved the nomination of Sen. Marco Rubio (R-Fla.) to be secretary of state 99-0 Monday, hours after President Trump took the oath of office in the Capitol Rotunda.

The day after Donald Trump was sworn in as America's 47th president, former U.S. senator from Florida, Marco Rubio, was sworn in as the 72nd secretary of state. Rubio was the first of Trump's ...

U.S. Secretary of State Marco Rubio and North Atlantic Treaty Organization (NATO) Secretary General Mark Rutte discussed the importance of having "capable" defense allies and "real" burden sharing during a call this week,