Overnight Defense: Turkey launches offensive against Syrian Kurds | Trump set for clash with Congress over Kurds | Senators unveil Turkey sanctions bill | Trump says Kurds 'didn't help us' in Normandy | Defense official arrested for leaking to journalists

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 ...