Washington meeting comes as concerns grow over an arms race with Beijing and Moscow.

Chris Christie tells CNN's Poppy Harlow why he hopes Donald Trump will appear on Colorado's 2024 presidential ballot.

Lindsey Graham speaks with CNN's Abby Phillip about the Biden administration's approach to the Saudi-Israel deal.

“I can't help but think [that the vacancies have] added a level of complexity and danger to an already bad situation,” an DOD official said.