Best in Show? Westminster Kennel Club Dog Show 2019 in Pictures

Update: A Wire Fox Terrier, King, was named Best in Show of the 143rd Westminster Kennel Club Dog Show.

Original article: The Westminster Kennel Club Dog Show, the biggest and oldest event in the canine calendar—indeed, the second-longest running sporting event in American history—is once again attracting the world's attention.

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Bichons Frises are judged in the ring during the Non-Sporting group competition at the 143rd Annual Westminster Kennel Club Dog Show at Pier 92/94 in New York City. Timothy A. Clary/AFP

Millions of people are expected to tune into the latest incarnation of the competition, which dates back as far as 1877. Now it brings together almost three thousand pampered pooches from all over the country—and puts them to the test.

Though the most fun event to watch may be the Masters Agility Championship, where dogs weave their way through obstacles, the most prestigious prize is Best in Show. Here, dogs are judged by how closely they conform to the ideal image of their breed group.

The American Kennel Club, which runs Westminster, recognizes seven categories: Sporting, Hound, Working, Terriers, Herding, Non-Sporting and Toy. The group that has won least often is the Herding group—which include collies and German shepherds. To date, two of the world's most popular breeds—Labradors and Golden Retrievers, both Sporting—have never won Best in Show.

Surprisingly, there is no cash prize for the winner, besides the prestige and breeding rights that can be cashed in later down the line. But between 2010 and 2015, there was another reward: Winners were invited to meet Donald Trump at Trump Tower after the show. Trump is the first president since 1987 to not have a dog in the White House, but his enthusiasm for the Westminster Dog Show tells a different story. Trump often posed for a photo with the winning dog before becoming president.

The Westminster Dog Show has seen 26 different presidents over the course of its long and illustrious history, but few can have been bigger fans than the current one.

Here Newsweek rounds up some of the best photos from the first day of competition at the 143rd Westminster Kennel Club Dog Show.

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A Standard Poodle named George waits backstage during the 143rd Westminster Kennel Club Dog Show. Sarah Stier/Getty Images
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A Shih Tzu is judged in the ring while another waits its turn in the spotlight at the 143rd Westminster Kennel Club Dog Show. Sarah Stier/Getty Images, Atilgan Ozdil/Anadolu Agency/Getty Images
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A Welsh Terrier stands on wooden blocks while it is groomed backstage.  Timothy A. Clary/AFP
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A Bichon Frise is groomed backstage before competing in the Non-Sporting group. Timothy A. Clary/AFP
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A Bichon Frise walks in the ring during the judging of the Non-Sporting group. Timothy A. Clary/AFP
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A Pekingese named Pequest Primrose competes during the Toy group judging. Sarah Stier/Getty Images
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A Lhasa Apso is groomed backstage. Timothy A. Clary/AFP
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A Maltese is carried into the ring for the judging of the Toy group. Timothy A. Clary/AFP
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A Yorkshire Terrier rests on a cushion backstage. Timothy A. Clary/AFP
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A handler attends to her Old English Sheepdog before judging. Timothy A. Clary/AFP
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A handler prepares her Old English Sheepdog for the ring. Timothy A. Clary/AFP
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An Old English Sheepdog nicknamed Elsa competes in the Herding group. Sarah Stier/Getty Images
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Left: A Standard Poodle competes in the Non-Sporting group. Right: A Toy Poodle competes in the Toy group. Sarah Stier/Getty Images
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A Pug is carried into the ring during the Toy group competition. Timothy A. Clary/AFP
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Kadence Addison runs in the ring with her Spanish Water Dog during judging of the Herding group. Timothy A. Clary/AFP
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A Pembroke Welsh Corgi named Xiv Karat Special Place In My Heart at Brigadoon competes in the Herding group. Sarah Stier/Getty Images
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A Yorkshire Terrier named Karma's Promise Key-Per competes in the Toy group. Sarah Stier/Getty Images
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Heather Helmer shaves her Chihuahua named Monty. Sarah Stier/Getty Images
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Virginia Goscinak grooms her Old English Sheepdog named Montgomery the Spartan General. Sarah Stier/Getty Images
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Gringo the Bulldog looks on after not being crowned the winner of his group. Sarah Stier/Getty Images
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Eve the Pomeranian is groomed backstage. Sarah Stier/Getty Images
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Danny the Chow poses for a photo during the 143rd Westminster Kennel Club Dog Show. Sarah Stier/Getty Images

The graphic below, provided by Statista, illustrates which breeds have been winning at the Westminster Kennel Club Dog Show.

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Breeds that have been winning at the Westminster Kennel Club Dog Show. Statista

This article was updated to include an infographic and information on the show winner.