washington republican senators try repeal obamacare form consensus keep u.s. healthcare law tax long criticize hop delay drastic fund cut particularly medicaid program poor disable first propose moderate republicans idea gain traction among party members accord five source involve brief internal discussions final decisions make sense urgency increase republicans draft replacement bill former president barack obama healthcare law congress go recess june 30. keep tax senate bill risk alienate conservatives tuesday 45 conservative group activists send letter republican senator orrin hatch utah chairman senate committee finance urge senate repeal obamacare tax one cornerstone tax could remain net investment income tax impose 3.8 percent surtax capital gain dividends interest source say tax likely abolish directly impact consumers health industry include tax health insurance premiums so-called cadillac tax high-cost employer-provided insurance medical device tax another proposal float keep tax affordable care act often call obamacare scale back group 13 republican senators lead majority leader mitch mcconnell complete full draft bill send piece nonpartisan congressional budget office assess impact various provision cbo assessment help determine tax senate need order pay replacement bill clear whether mcconnell conservative party members senator ted cruz texas senator mike lee utah receptive keep tax think tax go go away senator john thune south dakota senate 3-ranking republican say tuesday members still conversation want make change end go require additional revenue spokesmen mcconnell cruz decline comment spokesman lee say want republicans abolish every tax include 2015 obamacare repeal bill obama veto since obamacare become law 2010 republicans campaign repeal program extend insurance coverage 20 million additional americans subsidize private insurance expansion medicaid argue law costly represent undue government interference americans healthcare president donald trump promise eliminate law first day office republicans control white house house representatives senate struggle coalesce around single plan senate rule bill must replicate 133 billion save project preliminary legislation pass u.s. house representatives last month bill would end obamacare expansion medicaid 2020 slash federal fund 800 billion 10 years eliminate law tax moderate republican senators state expand medicaid include rob portman ohio shelley moore capito west virginia dean heller nevada propose phase expansion seven-year period 2020 2027 give state governors time cut program cost timeframe also prevent senators serve six-year term run re-election medicaid cut implement two former republican senate aid say obamacare tax could also repeal late congress tackle new legislation overhaul u.s. tax code two current senate aid say question current debate center eliminate tax obamacare right senator tim scott south carolina say last week process call reconciliation bill need least 50 vote pass vice president mike pence cast tie-breaking vote need interview reuters last month mcconnell say yet know would get enough vote obamacare repeal think rubik cube sit try think combination get 50 mcconnell say senate may keep obamacare tax u.s. healthcare overhaul