Kamala Harris calls special investigator's report on Joe Biden "politically motivated" Special counsel Robert Hur's report into Biden's handling of classified documents fueled debate about the 81-year-old president's state of mind. Hur also cited the president's supposedly poor memory as an argument that a jury would never find the president guilty in a hypothetical trial.

Biden is already the oldest president in US history and repeatedly causes a stir with slips of the tongue and mix-ups. He confused Kohl with Merkel, Mitterrand with Macron - and has now made Abdel Fattah el-Sisi the "Mexican President"