Obama returns to the public stage and more: April 24 in photos

Former President Barack Obama hosts a conversation on civic engagement and community organizing, Monday, April 24, 2017, at the University of Chicago in Chicago; President Donald Trump, accompanied by his daughter Ivanka Trump, talks via video conference with International Space Station Commander Peggy Whitson and Jack Fischer on the Space Station from the Oval Office of the White House in Washington; and, An attendee smokes a marijuana cigarette, during a rally to support the legalization of marijuana on Capitol Hill in Washington.