ACA has always had a lot of moving pieces, so many ways that it could fail either quickly or slowly. If this article is right, there is a complicated interplay between a court case, subsidies to insurance companies, appropriations, and possible backlash. I would rehash all the details here--who knows if we even know all the details? The upshot is that there may be an important development concerning ACA within the next month, so be alert for news.
Bandage removal: fast or slow? Now or later?