Donald Trump's lie that the election was stolen from him continues to spread. That's, in large part, because of a group of people crisscrossing the country, spreading false claims about voter fraud. NPR's Investigations team used social media and news reports to track four key figures in the movement: MyPillow CEO and longtime Trump supporter Mike Lindell, former U.S. Army Captain Seth Keshel, former high school math and science teacher Douglas Frank, and former law professor David Clements. NPR's Miles Parks explains their findings. In participating regions, you'll also hear a local news segment to help you make sense of what's going on in your community.Email us at considerthis@npr.org.