. >> amlo will also face the massive challenge of violence.e lastr was the most violent in mexico since the government started tracking homicides. amlo's promise to curtail the killing that most experts believe will take a generation. >> people are expecting a lot from him, right? that is one ofthe big problems. expect expectations, expectations. i'm won't accept any excuses. they want to see results in 3, 6 months and it's not easy. >> in mexico there iso much hope and so many problems, it takes just one voter, ra feel rivera sister, brother-in-law and nephew were all murdered by mexico a organized crime. >>n their honor we wil support this new government. we want mexico to be blesdz, for the vy lengths and corruption to stop. en>> those problems are rmous. but for one night,meicans celebrated a sweet victory and hoped for a better future. >> woodruff: and nick schifrin joins me, nick, i know they are still in the glow of this big win but do his supporters believe that he can actually deliver on his promises.y >> te certainly hoping he can deliver but they did not hope for him for the