Despite the heat and threat of thunderstorms, about 500 African-Americans are gathered in Rowlett Park for an end-of-summer day of barbecuing, dancing and playing cards. It’s the fifth annual Old School Picnic, a community park jam that brings together two black neighborhoods that were torn apart when the College Hill and Ponce de Leon public housing projects were razed in 2000. Earlier that morning, President Barack Obama held a massive campaign rally in nearby St. Petersburg, trying to turn out every last vote in this key swing state. The week before, Republicans had made their big bid for Florida at their national convention. Trying to answer that question is what brought Yvette Lewis, the political action chair of the Hillsborough County NAACP, to the picnic. The folks in Rowlett Park come from multiple generations of working-class Tampa families, and Lewis seems to be on a first-name basis with most of them. She threads herself through the clusters of tents, stopping every so often to catch up with a friend or family member, but more often to ask people if they’re registered to vote. “Do you know your status?” she inquires, meaning primarily whether they are eligible to vote because of past felony convictions.