The LA Times editorial board argues that the US Supreme Court should roll back current regulations that prevent corporations and unions from making independent expenditures in political campaigns when the court re-visits McCain-Feingold. The court will take up the issue next month.

Citizens and, yes, corporations have the right to express themselves politically, something that often costs money. But when support for a candidate merges into the sort of close relationship that gives rise to an appearance of corruption, Congress can step in. It's a balancing act, and the Supreme Court holds the scales.