Hunter Biden, one of former President Joe Biden's sons, told BBC News that his father's cancer has spread, describing it as "very painful" and "very debilitating. " Dr. Jon LaPook joins with more.
Source: [CBS News](https://www.cbsnews.com/video/hunter-biden-reveals-his-fathers-cancer-has-spread-its-very-painful-and-its-very-debilitating/)