washington presidential candidate donald trump wednesday lash u.s. chamber commerce scathing criticism stance trade highlight divisions within republican party threaten unity ahead nov. election campaign rally maine wednesday trump call nation large business association control totally various group people care whatsoever say new trade deal negotiate foreign countries take advantage america every country business us look us stupid people penny bank trump say wednesday rally bangor maine washington-based lobby group represent unite state large company business interest typically reliable backer republican policies tuesday take issue trump vocal opposition trade deal call proposals dangerous ideas would push unite state another recession trump say chamber argument policies would cause trade war incorrect unite state already deficit already lose trade war lose trade war trump say nothing happen bad happen now speeches tuesday trump call renegotiate scrap north american free trade agreement nafta canada mexico call job killer reiterate opposition pending trans-pacific partnership among unite state 11 pacific rim countries also lambast china trade currency policies chamber consistently back trade deal public squabble presumptive republican nominee business group unusual one series reminders trump still struggle unite party behind campaign republicans many business leaders tend share policy goals work lockstep many business leaders traditionally big donors republican candidates far chamber political action committee donate 134,000 federal candidates committees 127,500 total go republicans accord u.s. government campaign finance record billionaire republican donor paul singer bankroll effort try defeat trump campaign nominate phase say wednesday trump presidency trade position would almost certainly lead global depression impactful economic policies recall come anti-trade policies singer say panel discussion aspen ideas festival colorado accord cnbc oppose trade deal prove win strategy trump among voters concern loss manufacture job art laffer economic adviser president ronald reagan support trump say like tone trump speech tuesday think improvement past comment trade terribly alarm laffer say see 45 percent tariff across board ... saw negotiate good trade deal rather throw away trade deal point flaw trade true laffer say like tone dislike tone less today three weeks ago peter navarro trump trade policy adviser defend candidate position central point understand white house utterly completely soft china illegal trade practice say navarro professor university california irvine status quo bad possible worlds unite state trump also take fire position trade democrats call organize rival hillary clinton presidential campaign u.s. senator mark warner virginia former businessman tech entrepreneur say country need good job protect workers resources put train new economy also note unusual see republican standard-bearer chamber divide really get special circumstance u.s. chamber commerce respond trump economic plan full-fledged onslaught warner say one could predict kind election season clinton hold public campaign events wednesday announce would appear next week president barack obama first time year former secretary state campaign together trump 's opposition trade deal fuel internal party opposition