From BNA: The Club for Growth's new court filings argue that the FEC's enforcement case against a single political organization is unconstitutional. "The Club was but one of many 527s whose activities were equally subject to the claims now made against it," the court papers said. "For the Club to have refrained from the use of such common and unchallenged practices would have distorted public discourse and impaired the Club's fundamental right to speak freely and on equal terms with others." According to BNA, the FEC filed the lawsuit because the Club for Growth allegedly received more than $4 million in 2004 alone from donors contributing in amounts exceeding the $5,000 limit. In their lawsuit, the FEC claims that this money was received in response to appeals by the group to help selected federal candidates.