Look back at photos of some of the longest-lasting love stories in presidential history

© <p>AP Photo/Ira Schwarz, File</p>

Former Presidents Biden, Clinton and Bush are set to attend the opening of the Obama Presidential Center, according to a new report. The Chicago Sun-Times reported Wednesday that the three presidents intend to be at a ceremony to commemorate the center’s opening, a source familiar with the event told the outlet. Former first ladies Laura...