washington u.s. president donald trump hurt low-income americans away obamacare subsidies make hard engage bipartisan talk democrats congress edge toward possible government shutdown lawmakers say sunday white house announce republican administration stop pay billions dollars insurers help low-income consumers meet out-of-pocket medical expense part president step-by-step effort dismantle affordable care act democratic former president barack obama signature healthcare law expect loss cost-sharing subsidies estimate worth billion year 10 billion 2018 prompt worry insurance market chaos undermine price insurer hospital company share antagonize democrats support obamacare trump action could also lead political turmoil spend december republicans hope put final touch sweep tax reform bill republican senator susan collins oppose trump-backed legislation repeal replace obamacare warn president move also affect ability vulnerable low-income people access healthcare afford out-of-pocket medical cost concern impact go people collins say cnn state union fund available cost-sharing reductions use subsidize out-of-pocket cost afford deductible insurance pretty much useless ask trump action would hurt americans reply believe that last week president also offer invitation democratic leaders come white house negotiate healthcare house representatives democratic leader nancy pelosi show little interest sunday little far road pelosi say abc week program pelosi indicate president action continue white house pressure fund wall u.s.-mexico border could make hard republicans win democratic cooperation december current government spend measure due expire want negotiate healthcare bill repeal affordable care act build wall pelosi say republicans majority signature president keep government open collins pelosi see bipartisan path healthcare discussions possible legislation republican senator lamar alexander democratic senator patty murray republican senator lindsey graham tell cbs face nation trump also encourage alexander get bipartisan deal also want future healthcare bill reform current system president go continue throw good money bad give billion insurance company unless something change obamacare would justify graham say get good deal trump obamacare move see harm americans bipartisan prospect