In particular, the US President used obscene language against Trump, the publication writes.
“The president, in a conversation with longtime friends and aides, described Trump as a “sick bastard (in the quote attributed to Biden, an obscene version of the curse is used. -
RT
),” the article says.
The White House refused to comment on these cases, journalists note.
Such antics contradict Biden's image as someone who gives the impression that he is seeking to reduce the "level of harshness" in politics, the newspaper writes. At the same time, the president's intemperance shows a "deep-seated anger" towards Trump, with whom Biden may yet have to compete again.
In December, Joe Biden swore at a memorial service for Sandra O'Connor, the first woman on the Supreme Court, at the Washington Cathedral.