Traffic stops, which happen approximately 50,000 times each day in the United States, are the most common interaction between law enforcement and the public, according to data from the Stanford Open Policing Project. These stops can result in nothing more than a friendly warning or can escalate into an arrest using force. All other factors being equal, however, Black drivers are more likely than white drivers to be stopped by police. Uncovering the reasons for this discrepancy is essential to understanding and combating discrimination and racial disparities in the criminal justice system.