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.

US Secretary of State Marco Rubio spoke with Deputy Premier and Foreign Minister Antonio Tajani stressing the importance of the U.S.-Italy alliance to the safety, security, and prosperity of the American people,

Senator Marco Rubio warned of China’s growing threat, and he backed NATO but said Europe needed to do more to help protect itself. His friendly, five-hour confirmation hearing seemed to all but guarantee he would be the next secretary of state.

Marco Rubio was confirmed by the Senate as secretary of state with unanimous support, Democrats joining Republicans in praising his acumen and judgment.

U.S. Secretary of State Marco Rubio reiterated America's commitment to NATO in a discussion with NATO Secretary General Mark Rutte. They focused on equitable funding responsibilities and stressed the urgent need to end Russia's war in Ukraine.

Florida Sen. Marco Rubio was confirmed by the Senate to be the next secretary of state Monday night, making him the first of President Trump's Cabinet picks to receive congressional approval.

The Senate voted on Monday to confirm Marco Rubio as President Donald Trump’s secretary of state, the first high-level Cabinet official for the new administration to be approved by the chamber.

A Taliban ambassador is warning new U.S. Secretary of State Marco Rubio against making threats after he said he would place bounties on Afghanistan's rulers for their continued detention of U.S. nationals.

Marco Rubio on Wednesday painted a dark vision of ... testified to the Senate Foreign Relations Committee. Asked about NATO, the 75-year-old security organization that Trump has repeatedly ...

Marco Rubio was overwhelming confirmed by the Senate as secretary of State to Donald Trump. He becomes the global face of Trump's foreign policy.

The White House said Sunday night that Colombia has agreed to allow the United States to transport repatriated migrants back to the country after two US military planes carrying deportees were blocked by Colombia early Sunday,