new york u.s. president donald trump attack venezuela authoritarian government podium unite nations week latin american leaders say behind scenes listen best resolve delicate regional crisis latin american leaders din trump monday fringe u.n. general assembly say tell military invasion threat casually make last month would unacceptable region long-sensitive heavy-handed intervention washington press need peaceful transition democracy venezuela argue economic sanction would deepen humanitarian crisis already send tens thousands flee neighbor countries trump go trouble ask us best solve venezuelan situation argentine foreign minister jorge faurie attend dinner tell reuters unite state would consult latin american counties major step forward unite nations general assembly week trump attack socialist government president nicolas maduro destroy once-wealthy oil-producing nation threaten increase sanction maduro move toward restore democratic rule trump steer clear repeat threat military action make aug. 11 alarm latin americans many conjure memories 1989 u.s. invasion panama overthrow dictator manuel noriega die may years prison unite state country least 125 people kill venezuela four months protest year maduro resist call bring forward presidential election instead set legislative superbody overrule opposition-led congress decisions take talk trump presidents brazil colombia panama vice president argentina put pressure maduro engage real negotiations opponents instead use talk gain time latin american leaders say brazilian president michel temer tell reporters dinner present agree ramp pressure venezuela without direct intervention president juan carlos varela panama say dinner trump strengthen initiative dozen latin american countries canada back new round negotiations maduro opponents pressure convince maduro accept free democratic elections 2018 varela tell reuters think maduro get message change must come purchase crude refine products venezuela represent percent total u.s. oil import first half year give washington leverage push political change south american nation yet oil embargo would deprive maduro government main source income discuss dinner trump several attendees say much venezuelan oil heavy sulfur use heat oil asphalt also refine gasoline mainly u.s. gulf refiners gulf state senators urge trump ban import would hurt refineries push gasoline price colombian foreign minister mar angela holguin say oil boycott would extend suffer venezuelan people face shortages food medicine think venezuelans would suffer even economic crisis deepen say formal negotiations opposition due begin dominican capital santo domingo sept. 27 involve observers mexico chile nicaragua bolivia argentina faurie say maduro government would agree several condition talk take seriously include calendar elections monitor international observers release political prisoners eric farnsworth vice president americas society business forum dedicate foster tie unite state latin america say talk trump regional leaders send clear message maduro important thing come dinner photograph show president vice president unite state sit regional leaders talk venezuela farnsworth say rhetoric aside latin america leaders say trump listen venezuela