One of the most stinging criticisms of Biden’s memory from the February report – in which he was labelled a “well-meaning, elderly man with a poor memory” – was that he forgot the date of his son Beau’s death in 2015.

The report said: “He did not remember, even within several years, when his
son Beau died.”

The transcript – which US media have seen – now gives more detail. CBS News says it shows that in the October interview, the then-80-year-old president could recall the month and day but not the year.

He responded: “What month did Beau die? Oh god – May 30th.”

An unnamed White House lawyer in the room added: “2015.”

“Was it 2015 he had died?” the president asked.

An unidentified person in the room replied: “It was May of 2015.”

Biden agreed: “It was 2015.”