Patti Labelle Sneaks in Hillary Endorsement During Performance at African-American Museum Opening

Patti LaBelle mic drop at @NMAAHC: "I know a change is gonna come—Hillary Clinton!" #APeoplesJourney

— Gabe Ortíz (@TUSK81) September 24, 2016

Most of the event, however, was beyond politics. President George W. Bush and President Barack Obama joined each other onstage and acknowledged each other's efforts to ensure the museum's presence on the National Mall. 

The museum opened its doors on Saturday, officially joining the Smithsonian.