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

Waltz was among high-ranking members of the administration who accidentally shared plans about a forthcoming U.S. military ...

President Donald Trump said Thursday that he’s naming Secretary of State Marco Rubio as acting national security adviser to ...

President Donald Trump ousted his national security adviser, Michael Waltz. Trump’s use of an 18th century law for ...

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.

President Trump is tapping national security adviser Mike Waltz to be his ambassador to the United Nations following reports ...

President Donald Trump said Thursday that he’s naming Secretary of State Marco Rubio as acting national security adviser to ...

Secretary of State Marco Rubio has been thrown into two top national security jobs at once as President Donald Trump presses ...

Former Florida Senator and current Secretary of State Marco Rubio will serve as the acting national security adviser, ...

WASHINGTON — President Trump announced a major shakeup in his national security team Thursday, tapping Mike Waltz to be his United Nations ambassador while Secretary of State Marco Rubio will ...

Trump ousts national security adviser Mike Waltz amid internal tensions and a messaging scandal, naming him UN ambassador and ...