Mitt Romney raised a lot of money this weekend at a gala fundraiser in the Hamptons, where guests such as the Koch brothers paid up to $50,000 to attend. But according to the Huffington Post, one particular presence that weekend was not on the official guest list: Karl Rove.

Rove was in town to speak at a luncheon promoting his super PAC, American Crossroads, and his affiliated nonprofit group. Because American Crossroads spends its contributors’ unlimited donations on ads supporting Mitt Romney (or attacking President Obama), the Romney campaign and Rove are prohibited by law from “coordinating” with each other.

As far as the law is concerned, however, “coordination” is defined narrowly at best. With the Romney event unable to sponsor Rove’s luncheon, Solamere Capital, a private equity firm founded by Romney’s son Tagg along with Romney’s chief fundraiser Spencer Zwick, footed the bill. Many of the attendees at Rove’s luncheon, scheduled the day before the official retreat weekend, were also at the campaign fundraiser. As one fundraiser who was at the retreat noted, “It was not a coincidence that the Solamere conference took place in the same city just before the retreat began.”

Thanks to Citizens United, corporations and wealthy individuals and special interests can bypass the $2,500 maximum that campaign committees can accept and instead give unlimited amounts to super PACs like American Crossroads, which in turn spent about $300 million this year to support the GOP. Although in its flawed ruling the Court may have intended such outside groups to be independent, the facts just don’t support that notion:

"This kind of activity [by Rove] is the last thing the Supreme Court had in mind when it ruled that spending by an outside group had to be ‘totally independent’ and ‘wholly independent’ from a candidate the group is supporting with expenditures," Fred Wertheimer, the president of Democracy 21, said in an interview. "The FEC lives in a pure fantasy world in the way it attempts to define coordinated activities as not being coordinated activities."

Citizens United has left us in quite a campaign finance mess – and a constitutional amendment to overturn that decision and related cases is the only path forward to fairer and more transparent elections.