Can pollsters predict election results? We often hear a candidate is leading, trailing, or the race is tied. This is based on “horse race” polling, which estimates how much support candidates have, based on how people answer surveys leading up to an election. But accurately measuring the horse race is wicked hard. Our new video explores four reasons why. Creative Director & Story Editor: Kimberly Arias Executive Producer & Story Editor: Sara Atske Research & Story Editor: Courtney Kennedy Animation Director: Fabian Tejada Design: Jesus Cardenas Video: Antonio Villaronga Sound Editing: Chris Mastellone Thanks to: Andrea Caumont, Nida Asheer, Ashley Amaya, Peter Bell, David Kent, Stacy Rosenberg, Shannon Greenwood, and Blythe Thomas ABOUT PEW RESEARCH CENTER Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, media content analysi...