C.K. plans to challenge these results all the way to the Supreme Court.
The Labrador Retriever is the most popular pure-bred dog in the United States for the 18th consecutive year, according to the American Kennel Club.
More than 100,000 Labs were registered last year, more than twice as many other breed, the club said in a statement.
The Yorkshire Terrier came in second place with nearly 42,000 registrations, followed by the German Shepherd, the Golden Retriever, the Beagle, the Boxer and the Dachshund.