The relationship is revealed by Vice-president Dick Cheney's wife Lynne Cheny, reported BBC. It's interesting to know such gossip, :-)
They may be polar opposites politically but US Vice-President Dick Cheney and Democratic candidate Barack Obama are related, Mr Cheney's wife says.
Lynne Cheney said she had discovered while doing family research for a new book that her husband and the Illinois senator were eighth cousins.
She said she traced a common ancestor of the two men to be a 17th century immigrant from France.
She described the connection as "amazing".
"This is such an amazing American story that one ancestor... could be responsible down the family line for lives that have taken such different and varied paths."
Mr Obama's spokesman, Bill Burton, responded to the news by saying: "Every family has a black sheep."