caracas venezuela opposition say tuesday join schedule talk president nicolas maduro government undercut dialogue effort view suspicion many adversaries rule socialist party government eagerly promote talk amid global criticism maduro turn country dictatorship opposition always insist talk distract country economic crisis two side hold separate exploratory conversations president dominican republic early month opposition say government make enough progress issue human right warrant full bilateral talk negotiation go waste time look someone face rather venezuelans immediate solutions opposition leader henrique capriles tell reporters repeat last year failure say refer vatican-brokered talk 2016 fell apart opposition say government simply use stall tactic information ministry immediately respond request comment opposition want date next presidential election due end 2018 guarantee free fair also call freedom hundreds jail activists foreign humanitarian aid corridor respect opposition-led congress spain push european union adopt restrictive measure members venezuelan government maduro may hop dodge sanction unite state issue several round sanction venezuela primarily response creation all-powerful super body call constituent assembly elect july vote opposition label fraudulent many countries refuse recognize assembly maduro insist bring peace country 30 million say opposition leaders coup-plotters seek sabotage socialism oil-rich venezuela guise peaceful protest amid fourth straight year recession millions venezuelans suffer food shortages rampant inflation government blame economic war lead opposition fuel recent sanction venezuela opposition wo n't attend schedule talk government