One of the worst people who has ever lived, and I will never let any distractions from the current insanity obscure this fact.
Cheney was the true founder (the driving force behind a shadow group of Neocons) of the outrageously bogus and horribly counterproductive Iraq War, which cost 4,492 American lives, 33,000 Americans wounded (many with extreme severity, including many traumatic brain injuries), ended up taking more than one million Iraqi lives, including many hundreds of thousands of civilians, then also causing two million Iraqis to be displaced from their homes, two to four trillion dollars wasted, fostered an actual three-way civil war inside Iraq, eventually empowering Shiites allied with the worst elements in Iran, Iraq then transforming into a giant stage for the expansion of al Qaeda to kill more Americans and advance their terror outside the region, then the war was the foundation and empowerment of the new terrorist group ISIS.
All of this starting off with a planned and deliberate diversion away from the hunt for the actual author of 9/11, Osama bin Laden (a task completed by the Obama administration). Among the given knowledge of the day that the Iraq War was from its inception pointless: the United Nations weapons inspectors had been visiting Iraq for years, already verifying it had no nuclear weapon capabilities. It's often forgotten that both Colin Powell and Condoleezza Rice said of Saddam, in early 2001, that he is not only not a threat to the United States, at that point his regime was not even a threat to his neighbors in the region.