Joe Biden looked frail in his first public appearance since son Hunter Biden revealed his father is in great pain as his prostate cancer has spread to other parts of his body. Hunter said in an interview earlier this week that it has become 'really sad to watch' as his 83-year-old father continues to battle the disease. He was seen on August 8 in his native Delaware being escorted by Secret Service as he walked to enter a BMW following mass at Saint Joseph on the Brandywine Church in Wilmington. #joebiden #usa #hunterbiden