 This is the first of two scheduled debates. The second debate will be in September. I'm Matt Piper. Both sides signed off on new rules, many of them insisted on by Biden's team and agreed to by the Trump campaign, are designed to minimize the potential of a chaotic rerun of debates in 2020. Each candidate's microphone will be muted except when it's his turn to speak. There will also be no studio audience to chime in with hoots, hollers, and jeers. There will be two commercials, but they cannot meet with their teams during those breaks.