Washington (AP) — 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. Cheney passed away Monday night from complications related to pneumonia and cardiac disease, according to his family. Known as the chief operating officer of George W. Bush’s presidency, Cheney was a significant influencer in America’s post-9/11 era, advocating for extraordinary measures in the fight against terrorism. His family reflected on his legacy, honoring his dedication to public service and the teachings he imparted to his children and grandkids. Cheney's impact on American politics, especially through the Iraq War and his ongoing critiques of political figures like Donald Trump, cements his status as a complex and enduring figure in U.S. history.