republicans u.s. house representatives unveil plan replace obamacare know formally affordable care act strip away much president barack obama signature domestic policy achievement insure 20 million americans president donald trump republicans vow years dismantle law central campaign issue 2016. house representatives ways mean committee approve bill along party line early thursday nearly 18 hours debate house energy commerce committee still debate bill thursday all-night session democrats fight measure use numerous tactics delay vote bill could still change substantially make way committees main provision republicans want eliminate next year obamacare income-based tax credit help low-income people purchase individual insurance would replace tax credit range 2,000 4,000 per year would cap upper income level obamacare credit provide assistance low incomes republican plan would largely base age republican bill would abolish obamacare tax include tax medical devices health insurance premiums tan salons prescription medications would also delay tax high-cost employer-provided insurance know cadillac plan 2025. tax pay obamacare republicans say would pay part law want keep bill also repeal obamacare financial penalty 2016 tax year purchase insurance well surtax investment income earn upper-income americans repeal mandate large employers must offer insurance employees obamacare 30 state include several republican state make medicaid government health insurance accessible poor half obamacare enrollees obtain insurance expansion bill would allow medicaid expansion continue january 2020 provide state choose expand obamacare window enroll people date expansion would end medicaid fund would cap per-person basis state expand medicaid would receive additional fund number change include reinstatement disproportionate share hospital payments money provide hospitals serve large number medicaid uninsured people state medicaid plan would long cover essential health benefit health insurers obamacare exchange must provide fulfill republican promise return control state decide medicaid plan must cover republican plan would maintain obamacare popular provision would allow young people stay parent health plan age 26 ban insurers discriminate pre-existing condition ban insurers set lifetime dollar limit coverage bill would allow insurers mark premiums 30 percent lapse insurance coverage two months insurers another provision long seek ability charge old americans five time young people obamacare could charge three time would also allow state set ratio measure also provide state 100 billion create program patient populations include high-risk pool provide insurance sick patients bill would also revoke federal fund plan parenthood one year factbox republican obamacare plan would repeal medicaid expansion tax