Biden 'was'sworn in on a Bible that has been in his family since 1893 and was used during his swearing-in as vice-president in 2009 and 2013, according to CBS News.

The same Bible was also used each time he was sworn in as Delaware senator.

The book itself is five inches (12.5cm) thick with a Celtic cross on the cover.

The family Bible was also used by his late son Beau when he was sworn in as Delaware attorney general in 2013.

BBC NEWS