With Sen. Ted Cruz fighting Obamacare this week “until he can’t stand,” it is a timely occasion to remember which Republicans have been working with Democrats to knock Sen. Cruz down. Rep. Sean Duffy (R-WI) The second-term former MTV star complained on Friday that he and his friends in the House had “kept a lid on our anger” at Sen. Cruz, explaining, “we were the punching bag and bullied by some of these Senate conservatives.”