"As I have often noted, the abuse of the campaign finance enforcement process is an inherent cost of campaign finance regulation." (from Bradley Smith's - former chairman of the FEC (Federal Elections Commission) article "How Campaign Finance "Reform" Is Abused").
Bradley Smith - former chairman of the FEC (Federal Elections Commission).
Alleged campaign finance reform is really about incumbents retaining power and thwarting the rise of new political parties in the United States. If you don't think this is true, then ask yourself why it is easier to get on the ballot in many "third world" countries?
Lastly, Smith opines in the above article "Examining the behavior of regulators and interested parties in Wisconsin, we might also ask if campaign finance reform does not contribute to corruption.". I believe he's correct.