But it turns out these politicos don't have to fully separate themselves from the Clinton machine. In the Wild West of post-Citizens United campaign finance law, there is a major loophole that would allow Clinton to work as closely as she likes with any of the super-PACs that are working to boost her 2016 chances. The same goes for any candidate who, like Clinton, does not hold political office and is not a declared candidate.
Source: The Huge Campaign Finance Loophole Hillary Clinton Isn't Using—Yet | Mother Jones