Plot: Headlines for July 26, 2016; Chaos on Convention Floor: Protests, Boos and Chants of 'Bernie' Mark Opening of DNC; Jill Stein vs. Ben Jealous: Should Progressives Reject Hillary Clinton & Vote Green; 'It's a Sad Day for Many of Us': Bernie Delegates Boo Sanders After Endorsing Clinton; Who Should Bernie Voters Support Now Robert Reich vs