Another video, this one showing House members after they staged a sit-in on the House floor a month ago to force a vote on gun control legislation, as well as video of Democrats who traveled to Flint, Michigan, as it struggles with the issue of lead in their town's water supply.
A group of people celebrating America's diversity are on the stage, including filmmaker Robert Rodriguez says he produced the video -- "Our America" -- that just played in the arena. The people onstage include a Native American, a gay African-American woman who was just elected to the Georgia House of Representatives, a Muslim woman and an immigrant who is a U.S. veteran.