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.

Tensions between the U.S. and China have been rising for some time now, and Rubio's appointment has widely been seen as a sign that Trump plans to maintain a hard line on China during his second term. One of the most outspoken China hawks in Washington, Rubio has introduced several bills targeting the Chinese Communist Party.

Secretary of State Marco Rubio ordered a pause Friday on "all new obligations of funding, pending a review, for (U.S.) foreign assistance programs funded by or through the Department and USAID."

The Senate unanimously approved Senator Marco Rubio of Florida as secretary of state in the first vote on President Trump’s cabinet selections.

Marco Rubio has been confirmed by the Senate for secretary of state with unanimous support. Now comes the hard part that could make or break his tenure: retaining the full backing of his new boss, Donald Trump.

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. After taking the oath of office ...

Secretary of State Marco Rubio threatened the heads of the Taliban with a “very big bounty” after hearing that more American hostages are being held by the group. “Just hearing the Taliban ...

Vice President JD Vance has sworn in Marco Rubio as Secretary of State, the first of Trump’s cabinet nominees to take the job. Rubio said Trump’s primary priority will be furthering the United ...

Confirmations don’t come easier than this. 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 ...

Newly sworn-in Secretary of State Marco Rubio will travel to Panama for his first international trip as the nation’s top diplomat, Fox News has learned. Though details are still being worked out ...