The Ryan plan to change ObamaCare has just 2 reforms. There were 12 key overhauls in the ObamaCare legislation. Most of those overhauls were delegated to the HHS Secretary's discretion. Ryan only statutorily reverses
Mark Meadows, leader of the Freedom Caucus, offered a deal to Ryan and Trump, whereby the Freedom Caucus would largely support the bill.
If the Ryan bill was amended to statutorily do away with:
8 other mandates would be significantly suppressed by the HHS secretary (Tom Price). the problem with that is obvious, in that a liberal future president can simply order the resumption of most of Obamacare by simple acts of regulatory edict.