washington supporters obamacare stag rally across country thursday denounce efforts president donald trump republican congressional leaders repeal landmark law extend medical insurance coverage 20 million americans hundreds demonstrators turn washington chicago los angeles mark seventh anniversary enactment obamacare affordable care act aca become widely know many talk personal stake outcome healthcare debate roil capitol hill feel sick today come terrify say steve martin 27 unemployed los angeles resident diagnose cancer year ago legislators best healthcare world deserve same aca consider former democratic president barack obama premiere domestic achievement draw unrelenting scorn republicans promise repeal replace centerpiece trump presidential campaign thursday rally coincide plan action house representatives republican-backed bill begin dismantle obamacare vote indefinitely postpone republican leaders white house scramble muster enough vote passage many moderate republicans well democrats raise concern repeal-and-replace would leave many americans without health coverage supporters bill say would low premiums critics counter save would many case offset high co-pays out-of-pocket cost obamacare backers also worry fate millions gain insurance bill major expansion medicaid federal-state program provide coverage needy elderly disable nation capital several hundred chant protesters gather freedom plaza block white house carry sign slogans fight back keep america healthy robinette barmer 61 former seamstress caterer baltimore disability pension say without obamacare could afford various medications take ailments asthma high blood pressure co-pay co-pay pay struggle right say rally protesters march block trump international hotel pennsylvania avenue several dozen sprawl sidewalk die-in symbolize effect roll back obamacare 24 protesters arrest front white house refuse get grind organizers say protest organizers say small gather also hold outside congressional district offices various republican lawmakers around country obamacare supporters rally congressional repeal efforts