VP Picks: The 5 best and 5 worst

Dick Cheney has been called the most powerful and influential vice president in American history. As the head of George W. Bush's vice-presidential search team in the 2000 campaign, Cheney brought decades of Washington experience to the White House and was heavily involved in most of the president's major decisions during his two terms.

Dick Cheney has been called the most powerful and influential vice president in American history. As the head of George W. Bush's vice-presidential search team in the 2000 campaign, Cheney brought decades of Washington experience to the White House and was heavily involved in most of the president's major decisions during his two terms.