washington republican plan back president donald trump overhaul u.s. healthcare system clear first hurdle congress thursday chance passage look uncertain top republicans scramble bring disgruntle conservatives aboard face opposition democrats healthcare providers many conservatives two house representatives committees approve legislation would undo much 2010 affordable care act popularly know obamacare move close vote full house energy commerce committee vote 31-23 along party line democrats unify back plan marathon proceed last 27 straight hours hours early tax-writing ways mean committee similarly vote 23-16 dawn approve work 17 straight hours house speaker paul ryan seek bolster support among conservatives party senate majority leader mitch mcconnell say fellow republicans must get govern mode trump deny bill trouble despite hear press healthcare come along great talk many group end beautiful picture republican president say twitter bill would replace obamacare income-based subsidies system fix tax credit help people buy private insurance open market ditch obamacare expansion medicaid insurance program poor would also end penalties insurance though insurers would give permission impose 30 percent surcharge customers let coverage lapse two months seek renew hospital stock fall plan unveil monday end broadly high thursday tenet healthcare 3.4 percent share health insurers mix large insurers modestly high medicaid-focused insurers end negative include molina healthcare 3.3 percent drop republicans itch seven years dismantle democratic former president barack obama signature domestic policy achievement party fail coalesce behind plan put forth house republican leaders republicans control white house house congress first time decade passage legislation forego conclusion conservative lawmakers lobby group lambast similar obamacare sharply criticize propose tax credit unacceptable new government entitlement program call quick end obamacare medicaid expansion measure first major legislative test trump fellow republicans amid question whether govern effectively years spend opposition party obama ryan shirt sleeves roll use video screen facts figure hold call townhall-style presentation reporters proposal intend audience appear fellow republicans say party must actually make good word time say ryan long target criticism conservatives close ever get repeal replace obamacare ryan add mcconnell similar message say need get govern mode start think actually achieve something rather kind spar democrats denounce bill gift rich would force millions people insurance roll republicans say need roll back government nanny state role more-than- trillion u.s. healthcare system trumpcare loser america unless top percent senate democratic leader chuck schumer say house budget committee next wednesday due merge provision approve two committees one bill vote full house go senate republican leaders eye april congressional passage bill series tweet early thursday conservative republican senator tom cotton urge house colleagues pull back say measure could pass senate without major change matter long run good affordable health care americans house leaders arbitrary legislative calendar cotton write white house spokesman sean spic express confidence legislation prospect jam people throat spic say bill land president desk sign repeal obamacare brook institution think tank forecast nonpartisan congressional budget office expect early next week release closely watch assessment bill cost coverage implications would conclude least 15 million people would lose health insurance credit rat agency standard poor early estimate 6-10 million people could lose health insurance coverage energy commerce committee vote conservatives request panel chairman withdraw amendment sponsor republican joe barton would move two years next jan. end medicaid expansion barton say plan try offer amendment house floor committee chairman greg walden hail unanimity republicans committee approve bill obamacare enable 20 million previously uninsured people obtain coverage half come medicaid expansion bill propose change medicaid fund could hurt small less diverse health insurers fitch rat say unintended unforeseen consequences bill size likely create uncertainty health insurers doctor hospitals seniors health plan democrats governors conservative republicans bill may make house mario molina chief executive manage care company molina healthcare say interview think senate go slow things really take good look molina say go hope senate moderate republican u.s. health plan clear first hurdle fate uncertain