washington democrats congressional panel say members republican majority try sabotage investigation suspect russian meddle 2016 u.s. election raise concern two party reach contradictory conclusions republicans u.s. house representatives intelligence committee coach witness schedule interview without first request important document many fail attend witness interview four source close investigation say one occasion three source say republican representative trey gowdy tell jar kushner president donald trump son-in-law white house aide testify voluntarily could leave whenever like two-and-a-half hours one source say kushner take cue leave democrats finish question kushner lawyer gowdy immediately respond request comment panel hear 10 witness source say give lack preparation absence many republican members hear amount go motion rather serious investigation one source say two republican committee staffers speak condition anonymity also criticize call partisan effort discredit rather investigate allegations aid advisers republican trump election campaign may collude russia u.s. sanction several years conduct probe far staffers source say threaten undermine committee reputation bipartisanship former republican chairman mike rogers lead committee 2011 2015. representative jackie speier california democrat say would like believe panel come together unify conclusions submit joint report overly optimistic case another committee democrat representative eric swalwell say north star unity consensus happen along way see disruptive behavior think impede investigation despite still doggedly try find happen ask comment jack langer spokesman republican committee chairman representative devin nunes say statement article reuters act loyal obedient stenographer democrats utterly baseless complaints langer respond reuters request address specific complaints make democrats democratic members staffers committee say nothing publicly republicans possible motives fear destroy chance produce bipartisan report four source say democrats say republicans appear want undermine credibility fusion gps political research firm commission former british spy christopher steele produce dossier trump run president investigators attempt confirm dismiss content steele dossier outline russian financial personal link trump campaign associate u.s. intelligence agencies conclude january russian president vladimir putin order campaign hack propaganda undermine faith u.s. election denigrate democratic nominee hillary clinton help trump kremlin repeatedly deny allegations trump dispute associate collude moscow call probe congress special counsel witch hunt panel chairman nunes trump ally force step aside lead probe april house ethics committee say investigate allegations disclose classify information without authorization democrats committee praise representative mike conaway republican take nunes place lead investigation nevertheless nunes investigate fusion gps steele oct. 10 nunes subpoena firm partner source familiar matter say source familiar origins dossier say steele receive money work russian entity person fbi widely report supporters republican jeb bush one trump opponents party presidential nomination initially pay research late pick clinton supporters house senate intelligence committees create aftermath u.s. spy scandals expose 1970s long traditions avoid partisan feud three source familiar house committee work say democrats request meet members resolve differences republicans reject idea rift heal source say democrats could write report seek associate expect bipartisan senate intelligence committee report representative adam schiff house committee top democrat write washington post last weekend still hop members could arrive common conclusion remain hope consistency sake consistency cost incomplete work service public often force choose compete narratives events schiff write partisan feud undercut trump-russia probe u.s. democrats charge