washington president donald trump turn heat friday fellow republicans u.s. senate pass bill dismantle obamacare law retool healthcare plan draw fire within party even one defection would doom majority leader mitch mcconnell plan vote next week revise legislation unveil thursday work cut come days get 50 yes vote need passage republicans control senate 52-48 margin afford lose two within rank unite democratic opposition two republican senators already declare opposition years suffer thru obamacare republican senators must come promise trump make gutting obamacare one central campaign promise last year write twitter paris attend bastille day celebrations top u.s. doctor group american medical association friday call new bill inadequate say bipartisan collaboration need months ahead improve delivery finance healthcare hospital medical advocacy group also criticize bill revise bill address key concern physicians patients regard propose medicaid cut inadequate subsidies result millions americans lose health insurance coverage ama president dr. david barbe say refer government insurance program poor disable major test mcconnell legislation expect early next week analysis nonpartisan congressional budget office last month forecast prior version bill would result 22 million americans lose insurance next decade day cbo analysis issue mcconnell postpone plan vote legislation revolt within party include moderate hard-line conservatives bill prospect may look precarious could say healthcare legislation ultimately pass house representatives republican house speaker paul ryan call vote march face rebellion involve disparate factions party manage coax enough lawmakers back engineer narrow approval may 4. vice president mike pence seek shore support among nation governors meet rhode island key republican governor ohio john kasich come strongly revise bill say medicaid cut deep little stabilize insurance market kasich opposition could put pressure rob portman republican senator ohio yet take position bill current senate legislation collapse lawmakers raise possibility seek bipartisan legislation fix part obamacare leave intact structure affordable care act democratic former president barack obama signature legislative achievement commonly know obamacare change need make law dick durbin senate democrat tell msnbc cite bipartisan appetite tackle issue moderate susan collins conservative rand paul already oppose revise senate bill republican senators either express concern remain noncommittal include portman mike lee shelley moore capito john mccain dean heller john hoeven lisa murkowski jeff flake ben sasse cory gardner todd young thom tillis republican senators lindsey graham bill cassidy float alternative plan new version craft satisfy republican party various elements include moderate worry americans would leave without medical coverage hard-line conservatives demand less government regulation health insurance provision champion republican senator ted cruz aim attract conservatives would let insurers sell cheap bare-bones insurance policies would cover broad benefit mandate obamacare two major health insurance group america health insurance plan blue cross blue shield association call mcconnell drop cruz proposal say would undermine protections pre-existing medical condition raise insurance premiums destabilize individual insurance market bill retain certain obamacare tax wealthy early version would eliminate step moderate could embrace keep core early bill include end expansion medicaid instrumental enable obamacare expand coverage 20 million people restructure social safety-net program john thune member senate republican leadership say order complete work bill end next week senate leaders would try formally begin debate tuesday wednesday move require majority vote one republican defection would doom senate healthcare bill