Overnight Defense: Trump vetoes Iran war powers resolution | Pentagon awards $126M contract to 3M to boost mask production | Space Force chief advises Steve Carell to 'get a haircut'

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: In a...