Members of the Louisville Metro Police Department line up on the street in front of the main entrance of Churchill Downs racetrack before the 146th running of the Kentucky Derby, Saturday, Sept. 5.
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Members of the NFAC, a Black militia, march to Churchill Downs racetrack before the 146th running of the Kentucky Derby, in Louisville, Ky., Saturday, Sept. 5.
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Members of the NFAC, a Black militia, march to Churchill Downs racetrack before the 146th running of the Kentucky Derby, in Louisville, Ky., Saturday, Sept. 5.
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Protesters march past the gates of Churchill Downs racetrack before the 146th running of the Kentucky Derby, Saturday, Sept. 5, in Louisville, Ky.
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Protesters march past the Churchill Downs racetrack before the 146th running of the Kentucky Derby horse race, Saturday, Sept. 5, in Louisville, Ky.
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Police officers watch as protesters march past the Churchill Downs racetrack before the 146th running of the Kentucky Derby, Saturday, Sept. 5, in Louisville, Ky.
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Protesters march past the Churchill Downs racetrack before the 146th running of the Kentucky Derby horse race, Saturday, Sept. 5, in Louisville, Ky.
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Members of the NFAC, a Black militia, march to Churchill Downs racetrack before the 146th running of the Kentucky Derby, in Louisville, Ky., Saturday, Sept. 5.
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Security personnel guard an entrance before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Security personnel guard an entrance before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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The grandstand remains empty during the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky. The Kentucky Derby was won by Jockey John Velazquez riding Authentic.
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Military Police, working as security, stand in empty stands before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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A woman looks out over the paddock before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Jockeys for the 146th running of the Kentucky Derby pose for a group photo prior to the race at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Sandy Dompkosky stands in the paddock before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Jockey John Velazquez riding Authentic, right, crosses the finish line to win the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Ladies wear hats before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Jockey John Velazquez riding Authentic (18) heads to the finish line to win the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Guest watch a race before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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A lady watches as horses are walk in the paddock before the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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Trainer Bob Baffert holds the trophy after John Velazquez rode Authentic to victory in the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.
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John Velazquez holds the trophy after riding Authentic to victory in the 146th running of the Kentucky Derby at Churchill Downs, Saturday, Sept. 5, in Louisville, Ky.