washington members republican majority u.s. house representatives discuss next week whether nation top tax collector john koskinen impeach conservative charge stonewall congressional investigation house leaders say wednesday democrats decry move politically motivate embarrassment would case stop senate even republicans say think koskinen activities justify impeachment post internal revenue service irs commissioner conservative republicans house say koskinen fail comply congressional investigation whether irs apply extra scrutiny applications tax exempt status conservative group 2010 2012. house speaker paul ryan lead house republicans show little interest pursue impeachment ryan indicate wednesday expect floor action conservatives file privilege resolution bypass regular procedures take precedence house floor something go plan conference next week ryan tell regular press conference something congress go work will senate democratic leader harry reid call process waste put big capital letter say could block senate chamber majority leader republican mitch mcconnell spokesman mcconnell decline say action mcconnell might take house vote koskinen impeachment know koskinen well another senior senate republican finance chairman orrin hatch tell reuters yeah make mistake make mistake justify impeachment koskinen become irs commissioner december 2013 controversy already explode way agency handle applications tax exempt status members house freedom caucus chamber conservative bloc say koskinen push role aftermath scandal note commissioner backup tap destroy contain email former irs official lois lerner head irs tax-exempt division democrats note justice department bring criminal charge lerner say case koskinen show little agency mismanagement misstatements u.s. house republicans discuss whether impeach irs chief