And Rand Paul is pretty much doing what I said. He has a proposal that basically gets rid of all subsidies from Obamacare that individuals use to buy health insurance when they don't get it through employers. Why? He's very conservative. He hates redistribution. Collins-Cassidy keeps too much redistribution for his taste.
Rand Paul is important for two reasons here. First, he represents the extreme wing of the party. He hates compromise. Second, he is right there with Collins in one respect-- he won't vote for a repeal unless Congress passes a replacement at the same time. In other words, if Collins and Paul can't agree on a replacement, neither will vote for a repeal.
And their replacements look nothing alike. And Paul really doesn't like Collins-Cassidy. If one or both of them doesn't cave, Obamacare stays in place.