Update: Sept. 20
Dylan Matthews compares to to welfare reform, which he says failed miserably. Bill Clinton did that. Insurance companies will have to cover pre-existing conditions, but can charge a lot more.
But the subsidies, Medicaid expansion, and individual mandates are gone. Why not some sort of reinsurance system?
Update: Sept 22
Here is an analysis of Graham-Cassidy and the Jimmy Kimmel test, by MJ Lee et all on CNN, here. States have to use their grants to cover pre-existing conditions (maybe with reinsurance) but have a lot of leeway on what is "affordable".