Overnight Defense: Watchdog investigating VA chief | Allegations claim Wilkie tried to discredit aide who reported sexual assault | Dem chair working to restore Pentagon funding taken for wall | Navy chief says loss of shipbuilding funds 'not helpful'

Happy Thursday and welcome to Overnight Defense. I'm Ellen Mitchell, 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:&...