On May 6, the Republican National Committee, a co-plaintiff in McCutcheon v Federal Election Commission, 12-536, filed its opening brief. The argument itself is 60 pages long. It says that while there is a good reason for base contribution limits, there is no important government interest in controlling aggregate limits. “Base contribution limit” means a contribution to a particular candidate, or a particular group. “Aggregate contribution limit” means the federal law that controls how much money an individual may give to all candidates and/or all groups. Thanks to Rick Hasen for the link. It may take your computer 15 seconds or so to load the brief.