By Mollie Quirk The Kardashians could hold the key to Prince Harry and Meghan Markle regaining popularity in the United States, it has been claimed. Towards the end of the week, the Duke of Sussex was reportedly enjoying a skiing trip with Kris Jenner’s boyfriend Corey Gamble. At the time, a source revealed: “Harry had been hitting the slopes with Gamble, as well as Bumble dating app billionaire Whitney Wolfe, 34, and her husband Michael Herd, whom she met on a previous skiing trip.” According to reports, the Duchess of Sussex didn’t head to the slopes, with her likely busy working on her new …