http://www.washingtonsblog.com/2016/06/placebo-ballots-stealing-california-bernie-using-old-gop-vote-snatching-trick.html

Placebo Ballots: Stealing California From Bernie Using an Old GOP Vote-Snatching Trick

Alert! California poll workers have been told to give all independent voters “provisional” ballots if they want to vote in Democratic Party. That’s illegal – and will insure that Sanders voters’ ballots end up in the garbage, uncounted. A special bulletin for California voters.