Bernie's use of "Democratic" is to a great extent branding the Democrat party every time he speaks, debates or wins a primary. This is is why the DNC and so many elected Democrats are freaking out. If Bernie is the nominee, he most likely can't win with his platform and if he does win he will ask dems in the House and Senate to support $15 min wage, Medicare for all, free college and giant tax increases. Not even House and Senate dems in a majority will support those things IMO in numbers sufficient to get things passed. Bernie is a lose lose for the dem party.