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

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

The Senate quickly confirmed Marco Rubio as secretary of state on Monday, voting unanimously to give President Donald Trump ...

The Secretary-General of the United Nations, Antonio Guterres, on Monday expressed worries after the United States, the world ...

U.S. Secretary of State Marco Rubio issued a waiver on Tuesday for life-saving humanitarian assistance during a 90-day pause ...