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.

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.

Florida Sen. Marco Rubio is promising to implement Donald Trump’s “America First” vision as secretary of state

WASHINGTON (NEXSTAR) – Protesters interrupted the Senate confirmation hearing for Sen. Marco Rubio (R-Fla.) who is President-elect Donald Trump’s pick to be secretary of state. Sen. Rubio was disrupted multiple times while giving his opening statement ...

The US Senate unanimously approved Marco Rubio as secretary of state on Monday, putting the fellow senator on the front line of President Donald Trump's often confrontational diplomacy. Rubio ...

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 Senate voted unanimously to confirm Sen. Marco Rubio's as secretary of state on Monday, making him the first member of President Donald Trump's second Cabinet.

Rubio lost to Trump in 2016 but he’s living his best life as Secretary of State, approved unanimously by his Senate colleagues.

The Senate confirmed Senator Marco Rubio, Republican of Florida, on Monday as America’s 72nd secretary of state, putting a former political rival of President Trump at the helm of American diplomacy.

He was also a candidate in the 2016 GOP presidential primary race, where Trump dubbed him "Little Marco" and Rubio warned voters not to support Trump, saying "friends do not let friends vote for con artists." More about Rubio: He would be the first Latino ...

Reich also criticises Trump's executive order to end birthright citizenship - where anyone born in the US becomes a citizen - saying it's a violation of the US constitution: "Decent people could lose their citizenship... children could lose their parents...some parents may not have the right papers."