new york/washington hillary clinton find middle fight within u.s. democratic party pacific rim trade pact president barack obama back deal opponents whose help crucial white house bid showdown trade expect friday saturday democratic officials meet orlando florida negotiate language party 2016 platform set policy priorities intend guide campaign message nov. election different factions party deadlocked platform language sweep trans pacific partnership obama hop push u.s. congress late year current draft ratify july 25-28 democratic convention philadelphia acknowledge diversity view tpp platform bind candidates symbol party core value labor unions tpp critics call clear condemnation pact fear could lead steep u.s. job losses manufacture democrats say would risk undercut obama u.s. representative luis gutierrez illinois clinton appointee platform committee tell washington post long history oppose trade pacts want democrats side issue think important gutierrez also say think disregard position president unite state right intra-party rift create quandary clinton democrats presumptive nominee stake opposition tpp campaign support secretary state obama administration presumptive republican presidential nominee donald trump accuse waffle trade trump strongly condemn deal call horrible clinton embrace platform language condemn tpp would please unions cause difficulties obama one enthusiastic supporters moreover platform committee come language satisfy bernie sanders u.s. senator vermont also seek nomination still wield considerable clout fight might drag philadelphia convention create messy spectacle democrats formally nominate clinton white house labor unions tell clinton campaign frustrations closed-door meet june 30. one series occasional sessions update unions support campaign staff logistics issue conclude brief question-and-answer session afl-cio president richard trumka ask pact platform language unacceptable hasan solomon legislative director international association machinists aerospace workers tell reuters machinists first industrial union endorse clinton remain strong backers candidacy union activists align sanders even blunt saw language reaction think say rafael navar national political director communications workers america endorse sanders way challenge trump appeal millions working-class voters critical swing state 100 percent crystal clear oppose tpp job-killing trade deal many union activists also voice opposition deal paul booth executive assistant president american federation state county municipal employees private june meet host afl-cio booth among platform draft committee members suggest clinton push change tpp platform language sanders encourage millions supporters email texts register dissatisfaction obama support deal make hard party come forcefully say jamal simmons democratic political consultant raben group meanwhile platform committee expect amendments offer orlando point process say committee spokeswoman dana vickers shelley hear people concern be u.s. democrats infighting trade pact put clinton middle