In a couple weeks Kemba Live will host Taking Back Sunday in Columbus’ Arena District. But on Saturday morning, the concrete dance floor was lined with folding chairs and Democrats from around Ohio instead of elder millennials reliving past glories. The Ohio Democratic Party billed the gathering as a family reunion, pairing official business like selecting electoral college delegates with speeches from prominent party members like Illinois Gov. J.B. Pritzker and U.S. Sen. Cory Booker of New Jersey.