Allison Hayward has posted it here. Allison reports that the brief was filed on behalf of the Center for Competitive Politics, the Cato Institute, the Institute for Justice, Reason, the Goldwater Institute, and the Claremont Institute. Who is CCP? “The Center for Competitive Politics is a non-profit organization founded in August 2005 by [former FEC Commissioner and current Capital law professor Brad] Smith and Stephen M. Hoersting, a campaign finance attorney and former General Counsel to the National Republican Senatorial Committee. CCP’s mission, through legal briefs, studies, historical and constitutional analyses, and media communication, is to educate the public on the actual effects of money in politics, and the results of a more free and competitive electoral process. With the exception of participating in the two pending Supreme Court cases relevant to its mission, CCP will open its doors in early 2006.”