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FILE - In this Sept. 5, 2015, file photo, a Confederate flag flies in the infield before a NASCAR Xfinity auto race at Darlington Raceway in Darlington, S.C. Bubba Wallace, the only African-American driver in the top tier of NASCAR, calls for a ban on the Confederate flag in the sport that is deeply rooted in the South. (AP Photo/Terry Renna, File)