washington republican leaders u.s. house representatives plan vote soon mid-november 10-year reauthorization iran sanction act congressional aid tell reuters tuesday set potential showdown white house senate iran sanction act isa expire dec. 31 allow trade energy defense bank industry sanction iran nuclear program ballistic missile test fate one major piece unfinished business face lawmakers return washington nov. 14 first time nov. elections u.s. representative ed royce republican chairman house foreign affairs committee expect introduce 10-year renewal soon congress get back aid say congressional aid say clean renewal mean unchanged current legislation likely pass house fate senate much less certain white house spokesman would say whether president barack obama would sign law republicans control majorities house senate every republican congress oppose international nuclear deal announce july 2015 iran agree curtail nuclear program exchange relief cripple economic sanction republicans since try repeatedly pass legislation clamp iran accuse obama eager burnish foreign policy legacy concede much tehran nuclear talk senate republicans want clean renewal isa try build support legislation would renew also punish individual iranians businesses country ballistic missile test see support terrorism senators also push law would eliminate president right waive sanction security reason obama administration ask congress hold renew isa say enough power reimpose economic sanction iran violate nuclear agreement even expire white house spokesman josh earnest decline say obama would respond bill pass house congress reach desk prejudge point whether president would sign bill earnest tell reporters travel president los angeles president treasury department retain significant sanction authority already use impose cost iran flagrant violation international obligations say white house opposition bill could generate resistance democrats senate make difficult legislation garner 60 vote need move ahead republicans hold 54 seat 100-member chamber would need democratic support move bill renew sanction bill could also increase frustrations iran iranian officials complain months remain u.s. sanction frighten away trade partner rob many benefit promise nuclear deal house foreign affairs committee aide say address isa expire top priority royce iran sanction act enact curb tehran support terrorism dangerous weapons proliferation remain place regime stop export terror threaten us ally deadly weapons royce say statement send reuters introduce bipartisan long-term extension important sanction say exclusive u.s. house vote iran sanction act renewal soon november