Sign up for the daily Inside Washington email for exclusive US coverage and analysis sent to your inbox Get our free Inside Washington email Get our free Inside Washington email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy noticeFormer President Joe Biden’s cancer continues to worsen, according to his son Hunter Biden. “The cancer has spread, metastasized into his bones and further,” he said of his father in a Friday interview with the BBC. “It’s really, really hard and it’s really sad to watch,” Biden added of how the former president’s struggles have impacted the family. open image in gallery Former President Joe Biden’s cancer continues to get worse, according to his son Hunter Biden, who described the process as ‘really hard’ in a recent interview ( AFP/Getty )The former president’s eldest son, Beau, died from glioblastoma, an aggressive form of brain cancer, in 2015.