Bloomberg Politics: Cruz and Super-PACs Echo Each Other's Anti-Trump Ads

"The material in these ads came from a private media company," said Paul S. Ryan, deputy executive director of the Campaign Legal Center, which filed the complaint against Restore Our Future over its use of the old Romney ad.

Because the campaign and the super-PACs could independently acquire the same footage from a third party, there is no proof of coordination. "Clearly, what we’re seeing here is a campaign sticking out some messaging and that messaging being copied," Ryan said.

Because the super-PAC ads aren’t carbon copies of Cruz’s ad, there’s no foul. That means to prove coordination, there has to be proof of conduct.

"There has to be actual interaction between the candidate and the outside spender," Ryan said. "The conduct standards are pretty tough to meet for a regulator."

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