washington urge u.s. president-elect donald trump republican lawmakers rush scrap obamacare say week hop make change intend stabilize insurance market work repeal replace law beginnings framework outline post-obamacare world could look like come week congress approve resolution instruct key committees house representatives senate draft obamacare repeal legislation target date jan. 27. fate affordable care act popularly know obamacare high-stakes political showdown republicans democrats potentially jeopardize medical coverage millions americans risk cause chaos health insurance marketplace seven-year-old law enable 20 million previously uninsured americans obtain health coverage help slow rise healthcare spend republicans call federal government overreach general goal move decisions washington back state able make decisions next several months key republican senator work repeal lamar alexander tell reporters outside senate week speech senate floor alexander indicate republicans eye move insurers say would help shore insurance plan offer obamacare exchange change could do law regulation alexander say alexander say favor continue least temporarily cost-sharing subsidies millions americans receive obamacare exchange-based plan kind financial assistance help keep cost deductibles co-pays advocate adjust special enrollment periods insurers say sometimes abuse people wait sick sign insurance insurers long seek change would fix facet obamacare weed misuse would also help transition new system alexander say individuals could use government premium subsidies buy plan outside obamacare marketplace alexander chairman senate health committee one committees draft repeal legislation tell reporters discuss ideas number senators process evolve stress gradual change make lawmakers secretary health human service confirm trump nominate republican representative tom price job certainty something insurance industry need abandon coverage say senator johnny isakson georgia another republican lawmaker work stabilize insurance market unclear whether lawmakers reach ambitious target date jan. 27 draft repeal legislation house speaker paul ryan say cnn thursday republicans move quickly 2010 law democratic president barack obama signature piece domestic policy touch almost part u.s. healthcare system make replacement likely take effect number years even lawmakers try draft change weeks months u.s. republicans start framework obamacare replacement