washington bernie sanders plan suspend campaign endorse presumptive democratic presidential nominee hillary clinton video speech supporters thursday focus instead ways pursue policy agenda reform goals spokesman say sanders resist pressure exit race back clinton show party unity since clinch democratic nomination last week address supporters nationwide video live stream thursday night raise expectations sanders might formally pull plug campaign spokesman michael briggs say wednesday speech focus sanders supporters keep fight alive priorities raise minimum wage reduce influence big money politics tomorrow night end briggs say campaign work way go forward front message supporters go lot broad that sanders u.s. senator vermont promise continue campaign next month democratic nominate convention philadelphia leverage force concessions clinton policy goals reform seek democratic party nominate process since clinton secure enough delegate nomination last week however sanders lay campaign staff stop hold rally drop plan court unbind delegate unspoken acknowledgment former secretary state nominee know count briggs say sanders clinton meet downtown washington hotel 90 minutes tuesday night search common grind final nominate contest sometimes bitter primary campaign similarly word statements camp describe meet positive say two discuss share goal defeat presumptive republican nominee donald trump nov. election sanders back home burlington vermont wednesday prepare speech consider keep pressure clinton back issue like raise minimum wage fight climate change also demand change party nominate process include replace democratic national committee leadership eliminate superdelegates unelected free support candidate sanders camp push commitment hold vote convention platform issue change party nominate rule see convention serious opportunity serious discussion lot issue hope democratic party establishment figure way open arm welcome party fold people excite bernie campaign briggs say sanders end campaign thursday 's video speech spokesman