Cruz!!
Cruz fans: You have to get him to oppose the Trans-Pacific Partnership Agreement (also hugely promoted by Rand, knifing his own father in the back.) The TPPA would give President Obama the authority to negotiate with Viet Nam, Mexico, Brunei, Malaysia, Peru, Chile and Japan to allow those foreign nations to set US Immigration law. Congress would still have to approve the deal, but it could not be amended or filibustered, so whatever he offers would be virtually certain to pass.