Overnight Defense: Saudi crown prince calls Khashoggi killing 'heinous crime' in first public remarks | Dems demand briefing on Trump leaving arms control treaty | Lawmakers want probe into Pentagon cloud computing contract

Happy Wednesday and welcome to Overnight Defense. I'm Rebecca Kheel, and here's your nightly guide to the latest developments at the Pentagon, on Capitol Hill and beyond. CLICK HERE to subscribe to the newsletter. THE TOPLINE: ...