washington u.s. house leaders decide hold vote rework healthcare system overhaul week fail find necessary support congressional aid say thursday white house officials urge floor vote legislation president donald trump 100th day office saturday hop follow campaign promise repeal replace 2010 affordable care act also know obamacare advocate hop raise enough support measure group hard-line republican conservatives endorse amend version wednesday thursday even republican leaders still collect enough vote moderate republicans whose back also need passage house give unite democratic opposition vote week say one house republican aide ask name next week rule another indicate call vote vote representative pete sessions senior house republican also leave door open vote next week possibly refer trump sessions say lot people try rush legislation floor house republican leaders want allow time right say find time satisfy move pace keep people engage say late night session house rule committee chair republican healthcare bill would replace obamacare income-based tax credit age-based credit roll back expansion medicaid government health insurance program poor repeal obamacare tax nonpartisan congressional budget office estimate 24 million few people would insurance original version house leaders bring bill floor last month trump demand vote yank rebellion republican moderate party conservative lawmakers major setback trump amendment draft representative tom macarthur conservatives hardline freedom caucus week revive hop bill could still pass amendment would allow state seek waivers provision among one mandate insurers charge pre-existing condition healthy consumers insurers cover so-called essential health benefit maternity care number centrist republicans still oppose measure protections pre-existing condition without contingency affordable access coverage every american remain priorities advance healthcare reform bill satisfy benchmarks representative ryan costello pennsylvania say statement post social network twitter thursday outside group like american medical association weigh legislation say would cost millions health care coverage bill future cloud senate vote healthcare bill week u.s. house