The White House knew it had a political problem on its hands when a special counsel report questioned President Joe Biden’s memory last month, but Biden saw a much more personal affront as well. Robert Hur, who had been appointed to investigate whether Biden mishandled classified documents, wrote that the president couldn’t recall in an interview with prosecutors the date when his adult son, Beau, died of cancer. It was a shocking contention about a keystone event in Biden's life, and it fed into questions about whether the 81-year-old president is fit to serve another term.