In this July 17, 2015 photo, dust and dirt fills the air as spectators watch dirt track racing at the Ponderosa Speedway in Junction City, Ky. (AP Photo/David Stephenson)
In this July 17, 2015 photo, dust and dirt fills the air as spectators watch dirt track racing at the Ponderosa Speedway in Junction City, Ky. (AP Photo/David Stephenson)
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