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

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 ...

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 has been thrown into two top national security jobs at once as President Donald Trump presses ...

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

Horse trainer Kenny McPeek joins 'Fox & Friends First' to explain how Toby Keith's horse, Render Judgment, secured a spot at ...

The Republican president said Waltz would instead be nominated to serve as the US’s ambassador to the United Nations.

Mike Waltz has been removed from his job as U.S. national security advisor, the first major sacking of Donald Trump’s second ...

President Donald Trump on Thursday announced the recently ousted Mike Waltz will remain in his cabinet -- albeit in a ...

President Trump announced a major shakeup in his national security team on Thursday, tapping Mike Waltz to be his United ...