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

Secretary of State Marco Rubio is taking over for Michael Waltz as National Security Adviser, but Rubio is keeping his main job and other roles. During his first term in office, President Trump ...

Mike Waltz speaks during a television interview at the White House on Thursday before he was removed by President Trump as national security adviser. (Alex Brandon/AP) ...

President Trump said Thursday he is removing Mike Waltz from his role as national security adviser and in the interim replacing him with Secretary of State Marco Rubio. Trump said he's nominating ...

White House National Security Adviser Mike Waltz listens as President Donald Trump speaks in the Oval Office on April 23 [Alex Brandon/AP Photo] ...

“Mike Waltz has worked hard to put our Nation’s Interests first. I know he will do the same in his new role.” Trump said that Secretary of State Marco Rubio would instead step into the role ...

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 ...

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

President Trump said Thursday he is removing Mike Waltz from his role as national security adviser and in the interim replacing him with Secretary of State Marco Rubio. Trump said he's nominating ...

White House national security adviser Mike Waltz is set to depart the administration, according to two people familiar with the matter on Thursday, marking the first major staff shakeup of ...

Secretary of State Marco Rubio and the Trump administration are working to restructure the White House National Security ...