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.

U.S. Secretary of State Marco Rubio is heading to Central America on Monday in what is his first oversees trip since being confirmed as the top U.S. diplomat.

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.

Secretary of State Rubio spoke with China's Director of the CCP Central Foreign Affairs Commission and Foreign Minister Wang Yi.

New Secretary of State Marco Rubio told China's foreign minister on Friday that the U.S. would put the American people first and promote U.S. interests in its relationship with Beijing.

Military help is continuing even after new Secretary of State Marco Rubio announced he’s pausing foreign aid for 90 days, says Ukrainian president

Ukrainian President Volodymyr Zelenskyy has clarified that the United States's military aid to his country is still ongoing. This comes despite a recent announcement by newly appointed US Secretary of State Marco Rubio about a 90-day pause on foreign aid grants.

Like the Trump presidency, Rubio placed mass migration and border security at the top of his priorities list. Marco Rubio, Donald Trump’s newly-confirmed secretary of state, has assumed office with gusto,