Marco Rubio will be the first person since Henry Kissinger in the 1970s to hold the positions of secretary of state and ...

The newly appointed interim national security adviser is preparing to stay in that role for up to six months, a person close ...

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

Reports say President Donald Trump will nominate National Security adviser Mike Waltz to become the nation's ambassador to ...

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 ...

National security adviser Mike Waltz is out, with Secretary of State Marco Rubio replacing him on an interim basis. President ...

By Steve Holland, Gram Slattery and Erin Banco WASHINGTON The National Security Council did not immediately reply to a ...

White House national security adviser Mike Waltz is set to depart the administration, according to two people familiar with ...

Sources say that Thursday will be Mike Waltz's last day at the White House. His deputy, Alex Wong, is also leaving.