Donald Trump lashed out at Joe Biden in an interview on Wednesday over his successor’s decision not to attend the coronation of King Charles III, calling it “disrespectful”.
It comes as Mr Biden has been invited to make a state visit to the UK by the new monarch, who will officially be coronated later this week.
While Mr Biden will not make the trip, first lady Jill Biden is expected to attend the festivities.
"I think that it's hard for him to do it physically...getting over here for him,” said Mr Trump.
For all the ex-president’s apparent outrage, no US president has actually attended the coronation of a British monarch.
The coronation of Queen Elizabeth in 1953 was attended by a delegation selected by then-President Dwight Eisenhower, but not by Mr Eisenhower himself.
Should he serve a full two terms in office, the president would be 86 when he finally left office. »