As a senator, Marco Rubio prided himself on challenging tyrants. But as secretary of state, President Trump has tasked him with helping to potentially turn Russia from an enemy into an ally.

Russia's foreign minister Sergei Lavrov and US Secretary of State Marco Rubio are meeting in the Saudi capital Riyadh, but Ukraine has not been invited.

Secretary of State Marco Rubio said the release of American Marc Fogel from Russian captivity is a “good sign” for the U.S. and Russian President Vladimir Putin to work in cooperation to end the

Secretary of State Marco Rubio told European allies that the US will keep sanctions on Russia in place at least until a deal to end the Ukraine conflict is reached, even as his boss, President Donald Trump,

According to US Secretary of State Marco Rubio, the US and Russia agreed on four principles following talks that lasted over four hours in Saudi Arabia. Puck News correspondent Julia Ioffe explains how these talks,

Secretary of State Marco Rubio met with Saudi Crown Prince Mohammed bin Salman and Foreign Minister Prince Faisal bin Farhan al-Saud in Ridyah.

Secretary of State Marco Rubio will meet with his Russian counterpart in Saudi Arabia on Tuesday to discuss a possible peace deal for Ukraine.

Rubio and another senior official rejected concerns that Ukraine and other European leaders would have no place at peace negotiations, despite Trump's Ukraine envoy suggesting precisely that at this weekend's Munich Security Conference.

Vice President JD Vance and Secretary of State Marco Rubio will lead the U.S. delegation to the Munich Security Conference that starts Friday in the southern German city, where world leaders and diplomats are gathering amid intense concern and uncertainty over the Trump administration’s foreign policy.

Ukrainian President Volodymyr Zelenskyy says he will only agree to meet in-person with Russian leader Vladimir Putin after a common plan is negotiated with U.S.

WASHINGTON >> U.S. Secretary of State Marco Rubio said on Sunday the next few days will determine how serious Russian President Vladimir Putin is about peace in Ukraine, as U.S. officials fly out to Saudi Arabia for meetings with Russian officials.

We live in a multipolar world. Secretary of State Marco Rubio admitted as much during his wide-ranging interview in January with Megyn Kelly. The recognition that multipolarity is now the kind of world we live in came about,