Fox News Digital took a look at whom President Donald Trump could select to replace former national security advisor Mike ...

President Donald Trump announced former national security advisor Mike Waltz as his choice to serve as ambassador to the U.N.

Trump's appointment of Secretary of State Marco Rubio to temporarily replace Mike Waltz as national security advisor is the ...

President Donald Trump’s removal of national security adviser Mike Waltz brings further disruption to his national security ...

US National Security Advisor Michael Waltz is leaving his post, a stunning fall for one of President Donald Trump’s top aides ...

There is a very real possibility that Trump keeps Rubio as both secretary of state and national security adviser, according ...

Trump said he's nominating Michael Waltz to be ambassador to the United Nations, while Secretary of State Marco Rubio will ...

President Donald Trump says he is nominating national security adviser Mike Waltz as United Nations ambassador while ...

National security adviser Mike Waltz is leaving his White House post, although soon after reports about his departure were ...

President Donald Trump said Thursday that he would nominate national security adviser Mike Waltz to be U.S. ambassador to the ...