Most of the public attention has been focused on the shortcomings of the Affordable Care Act. The Republicans are gleefully planning how the assault on Obamacare will be a winning issue in 2014, and perhaps even in the presidential race in 2016. In my most recent US News & World Report column, I argue that the Republicans had better develop a plan of their own. Repealing Obamacare is probably unrealistic (as many of its individual provisions are quite popular). And if the GOP does successfully roll back the Affordable Care Act, then what?