The new secretary of state took center stage in a diplomatic rift with Colombia over deportation flights, adding teeth to Trump's threats of sanctions.

Rubio lost to Trump in 2016 but he’s living his best life as Secretary of State, approved unanimously by his Senate colleagues.

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.

Secretary of State Marco Rubio indicated that the United States government may consider placing a "very big bounty" to locate Taliban leadership.

Florida Senator Marco Rubio is unlikely to last longer than a year or two as Donald Trump’s top diplomat, at least according to about a dozen current and former U.S. foreign officials interviewed by Politico’s Nahal Toosi.

Marco Rubio has changed a lot since he ran for president in 2016. But his political evolution has made him uniquely qualified to be Trump's secretary of state.

Sen. Marco Rubio, President-elect Donald Trump's pick for secretary of state, will face questions from his Senate colleagues on Wednesday morning.

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.

U.S. Secretary of State Marco Rubio held a call with Jordan's King Abdullah on Monday, the State Department said, with the call coming two days after a suggestion by President Donald Trump that Jordan and Egypt should take more Palestinians from Gaza.

After taking the oath of office, Marco Rubio promised that every action taken by the State Department will be determined by the answers to three questions.

Secretary of State Marco Rubio has met with his counterparts from Australia, India and Japan as the Trump administration kicks off its formal foreign policy engagements in discussions with the Indo-Pacific “Quad.

China’s foreign minister conveyed the message in a phone call, their first conversation since Marco Rubio’s confirmation as Trump’s top diplomat.