washington u.s. president donald trump saturday blast senator john mccain deal possibly fatal blow late republican attempt dismantle obamacare accord new independent analysis bill await senate vote could lead 21 million few americans health insurance mccain arizona republican treat brain cancer cast crucial vote defeat similar bill july say friday could good conscience vote proposal author republican senators bill cassidy lindsey graham campaign repeal replace let arizona trump write mccain twitter early saturday morning senate majority leader mitch mcconnell say schedule vote graham-cassidy bill sept. 30 last day could pass chamber simple majority 51 vote instead 60 typically require bill would take federal money spend medicaid program poor disable well subsidies help individuals buy private insurance deliver state block grant non-partisan congressional budget office analyze legislation time assess graham-cassidy bill expect vote mccain close friend graham say could support without know much would cost effect insurance premiums many people would affect brook institution say friday graham-cassidy bill could leave least 21 million few americans health insurance 2020 2026. washington think tank generally supportive obamacare formally know affordable care act coverage estimate likely understate reductions insure americans clear state would use money would face obstacles set new program accord brook researchers clear however legislation would result large reductions insurance coverage write late saturday six associations represent u.s. doctor hospitals insurers say oppose bill would cause patients pre-existing condition lose coverage result expensive health insurance senate reject group say statement u.s. department health human service secretary tom price tell fox news channel america news hq saturday provide technical assistance information senators work bill price say bill dead despite mccain announcement waver support several republican senators reason dead finish bill complete continue work author weekend price say senate finance committee monday hold hear graham-cassidy bill cassidy physician expect testify cbo estimate previous republican proposals show could lead 20 million few insure americans complicate passage 100-member senate republicans hold 52 seat democrats unanimously oppose repeal-and-replace measure republicans need least 50 vote pass bill rely vice president mike pence break tie republican senator susan collins maine say lean graham-cassidy bill senator rand paul kentucky kansas senator jerry moran alaska lisa murkowski undecided blast mccain trump saturday single paul murkowski know rand paul think may find way get good party trump write twitter regard murkowski tweet alaska deductibles high people angry insurance industry hospitals consumer activists aarp advocacy group organizations american medical association american heart association american cancer society oppose bill share health insurers close high friday mccain announce opposition centene corp end 1.6 percent humana inc gain 0.2 percent aetna inc rise 0.1 percent reverse early losses trump pressure u.s. senators back republican healthcare bill