As President Barack Obama prepares to leave the Oval Office, we ask experts how the 44th president of the United States will be remembered. Khalil Gibran Muhammad, professor of history, race and public policy at Harvard University; Tomiko Brown-Nagin, the Daniel P.S. Paul professor of constitutional law at Harvard Law; and Jim Demers, a political consultant with The Demers Group in New Hampshire join Under the Radar to discuss how Obama’s policies, popularity and grassroots revolution changed American politics.