washington obama administration u.s. senate republican leaders scramble tuesday garner enough support get puerto rico debt relief bill critical procedural vote set wednesday several lawmakers predict would close months wait congress act puerto rico economic crisis progressively worsen caribbean island appear verge secure relief plan washington aim help address hobble 70 billion debt leaders political party senate board outcome appear uncertain obama administration send treasury secretary jack lew capitol hill tuesday try persuade recalcitrant democrats republicans hear arguments legislation fellow senators closed-door luncheon win vote tomorrow say senator bill nelson florida democrat leave meet lew senate majority leader mitch mcconnell republican tell reporters much board urge republicans back measure establish federal oversight board charge restructure u.s. territory debt hopeful optimistic obama administration able get democrats board believe strongly approach appeal republicans mcconnell say senate democratic leader harry reid say would support bill senate democratic whip dick durbin illinois recent convert proposal say try get majority democrats back house democratic leader nancy pelosi add much legislation object implore senate colleagues adopt bill failure pass bill would tremendous win unscrupulous hedge fund hold bill six months demand first line need people puerto rico say unless congress act fellow americans puerto rico plunge deep economic turmoil three days time puerto rico 3.5 million residents u.s. citizens u.s. territory reel 45 percent poverty rate steady flow outward migration u.s. mainland shrink tax base shutter essential service durbin predict close wednesday morning puerto rico debt relief bill need supermajority 60 senators vote stay alive senate despite mcconnell expression optimism republicans say leadership appear worry behind scenes think leadership concern really whip say senator dean heller nevada republican whip last night say come back ask reconsider white house join fray spokesman josh earnest say without action congress help puerto rico deal debt need bailout u.s. territory become likely measure identical plan pass house representatives early month congress try send president barack obama sign law july 1. puerto rico face potential default chunk debt make 1.9 billion payments wednesday morning procedural vote successful would clear measure passage week republican skeptics bill worry could constitute bailout something supporters deny democrats express concern composition oversight board labor provision say could low minimum wag young workers puerto rico top democrat senate finance committee oregon ron wyden announce tuesday would back legislation ohio democratic senator sherrod brown appear waver even meet lew wyden democrats senate office build brown say would likely vote yes wednesday procedural vote senate leaders promise vote unrelated issue legislation ensure federal government coal mine operators honor payment promise pension health benefit retire miners lew say think broad understand urgency believe let three half million americans descend chaos say puerto rico debt bill gain backers u.s. senate close vote see