With four hats, including national security adviser, the former Trump rival is defying predictions he’d be a weak player.

US Secretary of State Marco Rubio and Acting German Foreign Minister Annalena Baerbock at the NATO Foreign Ministers' Meeting ...

Rubio has made the Department of State virtually irrelevant, playing no role in key negotiations involving wars between ...

Secretary of State Marco Rubio said foreign policy “belongs” to Trump. But Sen. Rubio had a long record of legislative ...

The disarray in Donald Trump’s foreign policy team is mirroring the chaos and uncertainty that he’s foisted upon the world in ...

A jolt of staff upheaval this week made Marco Rubio the first person in 50 years to hold the top two national security jobs ...

US President Donald Trump could skip an important NATO event if members from the organisation fail to act on spending, ...

With no appetite to slash pensions or hike taxes, European capitals are stretching the definition of defence spending before ...

Marco Rubio was just two weeks into his new job when he got a critical lesson in being President Donald Trump’s secretary of ...

Germany rebuked Secretary of State Marco Rubio after he slammed the country’s intelligence ... party in the regions that once ...

Top diplomat, foreign aid chief, national archivist and now national security adviser. Marco Rubio's expanding resume ...

WASHINGTON – A jolt of staff upheaval this week made Marco Rubio the first person in 50 years to hold the top two national ...