Qatar's prime minister and foreign minister, Sheikh Mohammed bin Abdulrahman Al Thani, took part in a phone call on Tuesday with U.S. Secretary of State Marco Rubio

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.

The U.S. Secretary of State spoke with Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al Thani and Egyptian Foreign Minister Badr Abdelatty.

A diplomatic victory over Colombia capped a busy week for the U.S. State Deptment under new Secretary of State Marco Rubio, who oversaw an agency that quickly made border security and immigration ...

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 ...

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."

A Taliban ambassador on Monday warned the new US Secretary of State Marco Rubio against making threats after saying he would place bounties on Afghanistan’s rulers for their continued detention of US nationals.

A Taliban ambassador cautioned US Secretary of State Marco Rubio against making threats about placing bounties on Afghan leaders. This follows a prisoner swap involving two Americans, but with more in custody.

A Taliban ambassador on Monday warned the new U.S. Secretary of State Marco Rubio against making threats ... of the Taliban’s negotiating team in Doha to secure a peace deal for Afghanistan.

A Qatari official has told Newsweek that the country at the center of the recently established ceasefire agreement between Israel and the Palestinian Hamas movement will support President Donald Trump in pushing both sides to adhere to the truce.