gop health care bill will delay the rollback of medicaid expansion to at least 2023, but millions of americans may lose coverage even sooner that that. and that's because many states won't have the money to keep running the program. it has to do with the federal match rate. the expansion covers 11 million low-income adults in 31 states, and the government covers 90% of the cost. that's a higher rate than for traditional participants. medicaid has a huge turn rate. if adults drop out, they have to re-enroll at the lower traditional rate. that's where states run into problems. at least eight have rules that end the expansion early if the match rate drops below 90%. other states will have to freeze the program if federal support decreases. it is the source of federal funding for many states. cutting the expansion helps reduce medicaid spending by at least $200 million the next ten years. of course, that leaves the question open, are senators even