Secretary of State Marco Rubio has been thrown into two top national security roles at once after President Donald Trump ...

President Donald Trump ousted his national security adviser, Michael Waltz. The switch: Waltz, who was at the heart of the first Signal chat scandal, will be replaced, for now, by Secretary of ...

In March, the editor of the Atlantic magazine revealed that national security adviser Michael Waltz had inadvertently ...

Chris Hayes says Trump's choice to marginalize Mike Waltz and give Marco Rubio yet another top job amounts to the president's ...

Videos have resurfaced online showing Secretary of State Marco Rubio describing Donald Trump as a “conman,” years before he ...