Rachel Maddow looks at the powerful political momentum Democrats had built, including massive nationwide protests and a wildly successful election, only to have their unity falter on the shutdown fight with Republicans, resulting in capitulation that leaves many Americans who'd been encouraging Democrats to stand up and fight feeling hopeless and dispirited. Senator Bernie Sanders talks with Maddow about his objections to vote, Democratic plans going forward, and why "the Democratic establishment" should be the target of primarying.