Activist DeRay Mckesson ’07 was a guest on The Late Show with Stephen Colbert January 18, 2016, when he spoke about the Black Lives Matter movement and Campaign Zero, a platform that looks to end police violence through changes in union contracts and department policies.

Wearing his trademark blue vest and clutching his smartphone the entire time, Mckesson, who  has used social media as a tool to bring attention to issues of race, traded places with the host at one point as he and Colbert discussed aspects of white privilege. Watch the segment.