In a politics-free world, it wouldn't be that hard to help the struggling Affordable Care Act markets. Health care experts on the left and right pretty much agree on the policies it would take. It's a lot harder to get the right political mix to satisfy Republicans and Democrats.
Hard enough that even though Sens. Lamar Alexander and Patty Murray say they're going to work on a package in September to stabilize the markets, as the next step after the repeal debate, don't assume that they can get the easy stuff across the finish line.