rio de janeiro brazilian former president luiz cio lula da silva right-wing congressman jair bolsonaro would make second round vote 2018 presidential elections hold today ibope poll show sunday poll publish globo newspaper show center-left lula win 35 36 percent vote october 2018 race regardless candidates theoretically run law-and-order congressman bolsonaro whose popularity spur rise violence cities like rio de janeiro hard-hit country trouble economy would win 15 percent face lula marina silva former environmental minister lula would take third place vote field include lula candidate 11 percent vote silva would tie bolsonaro first place lula picture despite lula popularity political future hang balance convict july receive bribe construction firm return help win government contract august say workers party might run different candidate ibope poll 2,000 people brazil state conduct oct. 18 22. margin error two percentage point brazil 's lula bolsonaro well position 2018 elections poll