Secretary of State Marco Rubio now holds four top roles in the Trump administration, raising questions about power, trust – and whether one man can do it all.

Secretary of State Marco Rubio's new job as national security adviser sets the former Donald Trump rival up for a bigger role in war and peace.

That’s the sound of the Trump staffing carousel steaming up to speed. Mike Waltz was kicked upstairs last Thursday to the UN ambassadorship from his perch atop the National Security Council, following ...

WH deputy chief of staff Stephen Miller dispelled rumors that President Trump is considering him to replace Mike Waltz as National Security Advisor. Miller suggested that Secretary of State Marco ...

President Donald Trump has ousted National Security Adviser Mike Waltz and announced that he will nominate him as the next ...

In his recent case for why Donald Trump recaptures a cool factor not seen since (yes) Bill Clinton, a comedian inadvertently ...

Marco Rubio serving as both Secretary of State and national security adviser could be "ultimately disadvantageous" to President Trump, says former adviser John Bolton.

A sharp-eyed photographer took a pic of Mike Waltz’s phone, revealing message threads labeled 'JD Vance' and 'Gabbard' open on what looked like Signal ...

Currently, top US diplomat Marco Rubio both heads the State Department and serves as the US leader's national security adviser ...

Mike Waltz was removed as national security advisor, followed by the president nominating him for another position.

The comments came in a wide-ranging and at time combative interview with Kristen Walker that aired Sunday on NBC’s “Meet the ...