Dick Cheney, the hard-charging conservative who became one of the most powerful and polarizing vice presidents in U.S. history and a leading advocate for the invasion of Iraq, has died at age 84.

Hours after Cheney died Tuesday at 84, the state lowered flags at the Republican governor's order.

During the younger Bush's administration, he singlehandedly turned his role as vice-president from what was traditionally an empty role, with little formal power, into a de-facto deputy presidency, ov...