Sen. Rand Paul (R-Ky.) admitted Friday it’s “difficult to turn the clock back” on ObamaCare, but proposed making the law voluntary as a possible fix for consumers. “I think it’s going to be difficult to turn the clock back. People get assumed and accustomed to receiving things, particularly things that they get for free,” he told a crowd of students at Harvard’s Institute of Politics on Friday. Paul’s comments echo those of other Republicans who have admitted it will be difficult to fully repeal the law after some of its more popular provisions took effect. The potential 2016 presidential candidate...