Though they may spar across the political aisle, Vice President Dick Cheney is close enough to Democratic presidential hopeful Barack Obama to call him "cousin."

Eighth cousin, that is.

Lynne Cheney, the vice president's wife, revealed this tantalizing bit of political trivia during a television interview today.

She said she uncovered the long-ago ties between the two while researching her ancestry for her latest book, a memoir titled, "Blue Skies, No Fences."

Obama campaign spokesman Bill Burton offered a tongue-in-cheek response to the revelation, saying, "Every family has a black sheep."