The touring rock concert/John Kerry fundraiser being led by Bruce Springsteen, R.E.M., and other leftist musicians has sparked confusion nationwide among radio stations, consumers, and media conglomerates who are worried that purchasing tickets could run them afoul of complicated campaign finance laws. In Minneapolis, one Clear Channel radio station pulled out of an agreement to distribute free tickets to its participants after the parent company concluded that it could not buy the tickets, because the company sponsoring the concert is a so-called “527 organization,” involved in political affairs. In fact, the purchase would have been legal after all, but Clear Channel still isn’t buying.