Live video: Former President Bill Clinton to nominate Barack Obama at DNC - @NBCNews
Warren: Are you ready to prove to another generation of Americans that we can build a better country and a newer world? Joe Biden is ready. Barack Obama is ready. I'm ready. You're ready. America's ready - live video
Elizabeth Warren: Republicans 'believe in government to help themselves and their powerful friends' - live video
Elizabeth Warren: We celebrate success, we just don't want the game to be rigged - live video
Attorney, activist Sandra Fluke: I'm here because I spoke out - live video