Alan Rusbridger knows a scandal when he sees one. As editor of the Guardian he oversaw some of the most important stories in recent decades: cash-for-questions; phone hacking; WikiLeaks and Edward Snowden.Rusbridger thinks he’s looking at another scandal right now.“GB News is essentially Reform TV,” he tells me in today’s Democracy for Sale discussion. “A broadcaster has become the media arm of a political party, and nobody is doing anything about it.”This isn’t just about a scandal about a failure to enforce broadcasting rules, although it is that, too. At root, it’s a story about how money buys influence in British politics, and how our election laws are failing to keep up.