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.

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 told Rwandan President Paul Kagame on Tuesday that Washington was "deeply troubled" by escalation in the conflict in the Democratic Republic of Congo, particularly the fall of the city of Goma to Rwandan-backed rebels.

The Trump administration paused all foreign aid and urged USAID to follow in step or face disciplinary action for not complying with the freeze.

U.S.-funded aid programs worldwide have begun firing staff and preparing to shut down their operations as an unprecedented Trump administration freeze on foreign assistance brings their work to a sudden halt.

Donald Trump began his first day as the 47th president of the United States with a dizzying display of force, signing a blizzard of executive orders that signaled his desire to remake American institutions while also pardoning nearly all of

The US Senate unanimously approved Marco Rubio as secretary of state on Monday, putting the fellow senator on the front line of President Donald Trump's often confrontational diplomacy. "While we may not always agree,

US Secretary of State Marco Rubio has indicated that the US may impose significant bounties on senior Taliban leaders.

That would be Marco Rubio, the Florida senator and secretary ... Another Trump nominee who is expected to garner some Democratic support, UN ambassador pick Elise Stefanik, won’t have a hearing ...

US President Donald Trump has ordered most foreign assistance to be halted for 90 days pending a review, causing alarm among aid agencies worldwide.

US-funded humanitarian and aid programmes worldwide were firing staff and shutting down or slowing down operations, as the Trump administration's unprecedented freeze on almost all foreign assistance brought their work to a sudden halt.