Home CHICAGO, IL – APRIL 24: Dr Tiffany Brown laughs as she relates her first experience meeting former U.S. President Barack Obama during a forum at the University of Chicago held to promote community organizing on April 24, 2017 in Chicago, Illinois. The visit marks Obama’s first formal public appearance since leaving office. (Photo by Scott Olson/Getty Images) CHICAGO, IL - APRIL 24: Dr Tiffany Brown laughs as she relates her first experience meeting former U.S. President Barack Obama during a forum at the University of Chicago held to promote community organizing on April 24, 2017 in Chicago, Illinois. The visit marks Obama's first formal public appearance since leaving office. (Photo by Scott Olson/Getty Images)

CHICAGO, IL – APRIL 24: Dr Tiffany Brown laughs as she relates her first experience meeting former U.S. President Barack Obama during a forum at the University of Chicago held to promote community organizing on April 24, 2017 in Chicago, Illinois. The visit marks Obama’s first formal public appearance since leaving office. (Photo by Scott Olson/Getty Images)

CHICAGO, IL – APRIL 24: Former U.S. President Barack Obama attends a forum at the University of Chicago held to promote community organizing on April 24, 2017 in Chicago, Illinois. The visit marks Obama’s first formal public appearance since leaving office. (Photo by Scott Olson/Getty Images)

The White House is blanketed in rainbow colors symbolizing LGBT pride in Washington on June 26, 2015. The US Supreme Court ruled Friday that gay marriage is a nationwide right, a landmark decision in one of the most keenly awaited announcements in decades and sparking scenes of jubilation. AFP PHOTO/MOLLY RILEY (Photo by MOLLY RILEY / AFP) (Photo credit should read MOLLY RILEY/AFP via Getty Images)