Marco Rubio serving as both Secretary of State and national security adviser could be "ultimately disadvantageous" to ...

President Trump announced that Secretary of State Marco Rubio would serve in the 'interim' as his national security advisor.

President Donald Trump on Thursday removed his national security adviser, Michael Waltz, and nominated him as ambassador to ...

This is the first significant personnel overhaul of top White House aides, and the kind of shake-up President Trump has ...