What we can't say, though, is how much the "replace" part of "repeal and replace" would make up for the "repeal" part. That's because Republicans still haven't figured that out almost seven years later. The problem is that it's hard to come up with a conservative alternative to Obamacare when Obamacare is the conservative alternative. It's the market-based way to try to insure the uninsured. Think about it like this: if you want to make insurance companies cover people with preexisting conditions, then you need a mandate, and if you have a mandate, then you need subsidies to make it affordable. Obamacare, in other words, is the If-You-Give-A-Mouse-With-Preexisting-Conditions-An-Insurance-Plan system of health care reform.