Following Taylor Swift's endorsement of Kamala Harris, there has been a "400% or 500% increase" in voter registration — between 9,000-10,000 people per hour, according to data firm TargetSmart.
"It's really unlike anything I've seen," says TargetSmart senior adviser Tom Bonier.
"It's really unlike anything I've seen," says TargetSmart senior adviser Tom Bonier.