1. ‘Uprising’ is a very bad choice of words. It was a recall election pushed by unions and left-wing activists that the Democrats lost. In point of fact, unlimited fundraising in recall elections in Wisconsin predated Citizen’s United by more than a decade.
2. I don’t consider David Koch’s actions to be ‘censorship’, as he had no legal power to block the documentary. But PBS had accepted money from him, and a good bit of it. If you offend the man who is giving you money, he will likely give you no more. It was perfectly reasonable for Mr. Koch to let PBS know that he wasn’t going to continue funding them if they produced a documentary attacking him and his brother.