Politico: “When former Republican National Committee chairman Ed Gillespie joined Mitt Romney’s campaign last month, he cut ties with other groups he’d been involved with after seeking legal advice — most notably American Crossroads and Crossroads GPS, two of the most prominent conservative groups playing a major role in third-party spending this cycle. There is no prohibition against the top GOP power-broker hopping from an outside group to a campaign. The only rules against such movement go the other way, barring consultants from moving from a campaign to a super PAC during a certain time period.”