Supporters of Gustavo Petro joined parties and street celebrations after the former rebel was elected as Colombia's first leftist president. (June 20) Subscribe for more Breaking News: http://smarturl.it/AssociatedPress Website: https://apnews.com Twitter: https://twitter.com/AP Facebook: https://facebook.com/APNews Instagram: https://www.instagram.com/APNews/ ​ You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/1ef75f770be948388d1b46ceead81eef