The casket of Sen. John McCain, R-Ariz., lies in state at the U.S. Capitol on August 31, 2018 in Washington, DC. The late senator died August 25 at the age of 81 after a long battle with brain cancer. He will lie in state at the U.S. Capitol, a rare honor bestowed on only 31 people in the past 166 years. Sen. McCain will be buried at his final resting place at the U.S. Naval Academy. (Photo by Andrew Harnik- Pool/Getty Images)