Cheney died Monday night due to complications of pneumonia and cardiac and vascular disease, according to a statement from his family.

Cheney pushed to expand executive power and was a key force behind the U.S.-led invasion of Iraq. FRONTLINE chronicled his influence in multiple documentaries.

As vice president from 2001 to 2009, Cheney fought vigorously for an expansion of the power of the presidency.

Controversy continued to dog Cheney even after he left the Bush administration. He was the subject of a scathing biographical ...

Former Vice President Dick Cheney, considered by many political observers to be the most politically active and influential ...

Dick Cheney, a driving force behind the U.S. invasion of Iraq in 2003 who was considered by presidential historians as one of ...