caracas president nicolas maduro predict new foreign-led effort mediate venezuela political crisis would produce deal soon opposition say saturday would accept another time-wasting show follow months anti-maduro protest early year lead least 125 deaths side send delegations meet dominican republic president week possible start negotiate solution weeks conversations close agreement political co-existence peace sovereignty maduro say speech late friday near opposition accuse maduro create dictatorship ruin once-prosperous oil economy insist talk santo domingo exploratory would proceed without firm guarantee democratic change want date next presidential election due end 2018 guarantee free fair plus freedom hundreds jail activists foreign humanitarian aid corridor respect opposition-led congress iron-clad guarantee mess us around like last year promise heaven earth nothing happen say julio borges leader congress override pro-maduro legislative superbody call constituent assembly iron-clad guarantee ... everything lead democratic change ... take step tell reporters saturday recall fail 2016 vatican-led talk want avoid repeat last year show maduro say constituent assembly bring peace south american nation 30 million many major foreign power recognize body give origins controversial election opposition boycott four months often violent protest also lead thousands injuries arrest maduro say u.s.-fanned coup attempt defeat strife see international opinion harden dominican leader danilo medina say mexico chile bolivia nicaragua would join new round talk sept. 27 two countries define democratic unity coalition say saturday one paraguay government eager show world enter dialogue opposition leaders face skepticism supporters many view potential negotiation betrayal dead protesters legitimization autocrat venezuela 's maduro upbeat talk opposition fear 'show