washington republican u.s. representative ted poe resign house freedom caucus sunday conservative legislative group role sink healthcare overhaul champion president donald trump say easy lead hard elect texas lawmaker say statement leave caucus allow effective member congress poe favor republican legislation freedom caucus argue proposal go far enough repeal 2010 affordable care act popularly know obamacare freedom caucus consist house representatives conservative members instrumental deal trump stun political setback friday republican house leaders pull healthcare legislation derail major 2016 election campaign promise president ally trump fellow republicans control house congress trump court freedom caucus lawmakers intensively outside conservative group club growth heritage action america closely align freedom caucus strongly oppose republican healthcare bill urge lawmakers vote tweet sunday morning trump lash freedom caucus conservatives say action leave democrats smile d.c. republican lawmaker quit conservative house group healthcare conflict