Sen. Rand Paul (R-KY)’s America’s Liberty Super PAC is out with a new ad attacking Sen. Ted Cruz (R-TX) as a “Canadian” who supports President Obama on domestic surveillance extensions in the Patriot Act. The extreme-style smackdown ad features Paul as the shirtless hero of a Sunday brawl in the Senate over the NSA and the right to privacy. Featuring a picture of Cruz with Obama and the backdrop of a Canadian flag, the ad calls the Texas Senator a “capitulating Canadian” who is “backing Barack’s bill.” Technically, the ad is not endorsed by Sen. Rand Paul (R-KY)'s campaign, but...