Mr. Cruz is not responsible for the ad. He cannot talk to the super PAC per federal law. He did not approve or coordinate or have anything do do with this ad.
Your assertion that he is responsible is false. Unless you are willing to hold Mr. Trump to the same standard. Do you want to do that?
And lawyers can't lie in court either. ;) LOL.
Also, please provide a quote where Cruz categorically condemns the ad.