His grandfather, TP Gore, was a senator and his father a one-time Secretary of Aviation under President Franklin D Roosevelt.

BBC: US author Gore Vidal dies aged 86

It's four, equalling the record of Franklin D Roosevelt.

BBC: Quiz of the week's news

This rug features the Presidential Seal in the center and five historical quotations of meaning by Martin Luther King, Jr. and Presidents Abraham Lincoln, Theodore Roosevelt, Franklin D.

WHITEHOUSE: West Wing Tour