Robert F Kennedy Jr has said that he is being investigated by federal authorities for collecting the head from a decapitated whale carcass. During a campaign event on Saturday for the Republican nominee, Donald Trump, in Glendale, Arizona, the former independent presidential candidate said: “I received a letter from the National Marine Fisheries Institute saying that they were investigating me for collecting a whale specimen 20 years ago.” He added: “This is all about the weaponization of our government against political opponents.” Kennedy, who endorsed the former president after dropping out of November’s election, fell under scrutiny in recent weeks after the resurfacing of a 2012 interview that his daughter Kick gave to Town & Country in which she addressed the whale in question. Recounting how the creature washed up on a beach near Hyannis Port, Massachusetts, she said: “[He] ran down to the beach with a chainsaw, cut off the whale’s head and then bungee-corded it to the roof of the family minivan for the five-hour haul back to Mount Kisco, New York. “Every time we accelerated on the highway, whale juice would pour into the windows of the car, and it was the rankest thing on the planet. We all had plastic bags over our heads with mouth holes cut out, and people on the highway were giving us the finger, but that was just normal day to day stuff for us.” Reports of the decapitation caught the attention of the Center for Biological Diversity Action Fund, which called on federal authorities to investigate Kennedy. In a letter to the National Oceanic and Atmospheric Administration (Noaa), the environmental group said Kennedy “violated the Marine Mammal Protection Act, and possibly the Endangered Species Act, by illegally cutting the head off of a dead whale in or around 1994 in Hyannis Point, Massachusetts, and bringing it to his New York house”. The letter went on to say: “We hope that the Noaa Office of Law Enforcement, at a minimum, is able to ensure that Mr Kennedy surrenders any and all illegally obtained wildlife that he continues to possess, including the whale skull he took from the Massachusetts beach in 1994. Given Mr Kennedy’s reckless disregard for the two most important marine conservation laws in the United States, we ask that Noaa consider all appropriate civil and criminal penalties as well.” Kennedy in August faced a separate backlash after an unrelated animal admission. In that case, he acknowledged on a video that he was behind the dumping of a dead bear cub in New York City’s Central Park over a decade ago. Recalling the episode, Kennedy said that he picked up the carcass and put it in his van with plans to skin it and eat it later. However, he ran out of time to take the bear home and instead decided to stage a scene to make it look like a cyclist had hit the animal. “We thought it would be amusing for whoever found it,” Kennedy said.