I don't know how to solve it. If a group of passionate people unconnected to a campaign wants to put an ad on television, they should be able to do so. Maybe the penalties for lies should have more teeth somehow. Maybe there should be a vetting process. What stops up from putting up an ad up saying Bush ran from his responsibilities on 9/11 and tried to order Air Force One to Mexico, hid under his seat, cried for his Mommy the whole time, and tried to call up Osama to give our unconditional surrender? That's about the best parallel I can find. I really don't believe it happened like that, but any evidence otherwise could easily be spun as his defenders just playing politics and lying for him. It's ridiculous.
It's not the 527's that are the problem. It's the lies.
By the way, some people are saying that Bush ran from his responsibilities on 9/11 and tried to order Air Force One to Mexico, hid under his seat, cried for his Mommy the whole time, and tried to call up Osama to give our unconditional surrender. Why isn't the press asking George Bush about this? It really makes you wonder. Bush needs to address this scandalous charge.