The fate of Obamacare dominates the news—again. Eight years ago, anti-Obamacare Republicans and Tea Partiers were on the offensive. Today, it’s pro-Obamacare Democrats, perhaps joined by “astroturf” activists, on the offense. Congressional Republicans have had plenty of time to think through their preferred alternative to Obamacare in the seven years since it was signed into law. So what is the hang-up? Part of the problem is the GOP has never really come to grips with the basic question: Do Americans have a right to health insurance?