 I'm Michael Toscano, 19 hours and counting until the unusual debate between a sitting and a former president takes place as anticipation grows. I'm Matt Piper. Both sides signed off on the 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.