Jenna Schoenefeld for The New York Times
Horse racing is among America’s oldest sports and perhaps the only one ever run out of the White House: Andrew Jackson operated a stable there during his presidency. Yet the multibillion-dollar industry is now reeling as the Kentucky Derby approaches, with the death of yet another thoroughbred at the premier Santa Anita Park in California amplifying anxiety over whether the sport will continue in the state.
On Sunday, a gelding named Arms Runner fell during a race, sustaining a catastrophic injury to its right front leg that required the horse to be euthanized.