Former President Joe Biden looks out at the crowd during the dedication ceremony for the Obama Presidential Center, Thursday, June 18, 2026, in Chicago. (AP Photo/Jeff Roberson)

Former President Barack Obama, back center, and former first lady Michelle Obama, right, arrive on stage with their daughters, Sasha and Malia Obama, during the dedication ceremony for the Obama Presidential Center, Thursday, June 18, 2026, in Chicago. (AP Photo/Jeff Roberson)

Former President Joe Biden and former first lady Jill Biden, from left, former President Barack Obama and former first lady Michelle Obama, former President George W. Bush and former first lady Laura Bush, and former President Bill Clinton and former Secretary of State Hillary Clinton, pose for a photo ahead of the dedication ceremony at the Obama Presidential Center, Thursday, June 18, 2026, in Chicago. (AP Photo/Pablo Martinez Monsivais, Pool)

Former President Barack Obama, right, shares a laugh with former first lady Michelle Obama, left, on stage during the dedication ceremony for the Obama Presidential Center, Thursday, June 18, 2026, in Chicago. (AP Photo/Jeff Roberson)

Former President Barack Obama speaks during the dedication ceremony for the Obama Presidential Center, Thursday, June 18, 2026, in Chicago. (AP Photo/Jon Cherry)