We assess changes in oral arguments at the US Supreme Court precipitated by the COVID-19 pandemic and the degree to which those changes persisted once the justices acclimated to the new procedures. To do this, we examine whether key attributes of these proceedings changed as the Court experimented with telephonic hearings and subsequently returned to inperson oral arguments. We demonstrate that the initial telephonic forum changed the dynamics of oral argument in a way that gave the chief justice new power and reconfigured justices' engagement during these proceedings. However, we also show that the associate justices adapted to this new institutional landscape by changing their behavior. The findings shed light on the consequences of significant, novel disruptions to institutional rules and norms in the government and legal system.
| INTRODUCTIONIn early 2020, the public health threat posed by the COVID-19 pandemic forced institutions, both public and private, to reevaluate how to safely conduct their work. Courts across the US met via Zoom, Skype, or telephone, and many legislative and executive bodies did the same. The US Supreme Court was no exception. After initially delaying all sessions when it was unclear how long the pandemic would last, it soon became apparent that the Court had to find a means to, at a minimum, address the most pressing pending cases, which concerned issues ranging from Congress' ability to subpoena the president's tax records (Trump v. Mazars 1 ), employers' religious rights under the First Amendment (Little Sisters of the Poor Saints Peter & Paul Home v. Pennsylvania 2 ), and states' abilities to control presidential electors (Chiafalo v. Washington and Colorado Department of State v. Baca 3 ). To this end, the Court announced on April 13, 2020, that it would hear oral arguments remotely via telephone conference beginning