 Audiences have, in the past, broken from tradition and clapped or cheered for their candidate and booed opponents during debates. To avoid disrupting the event or throwing off the times allotted for questions and responses, the candidates will have to get through this debate without their supporters present. Muted microphones? In 2020, Trump repeatedly interrupted Biden during his speaking time, something he also did to former Secretary of State Hillary Clinton during the 2016 contest.