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

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.

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 ...