Per the Daily Mail, a 2018 statement announcing his death from the office of John McCain read, "Senator John Sidney McCain III died at 4:28 p.m. on August 25, 2018. With the senator when he passed were his wife Cindy and their family. At his death, he had served the United States of America faithfully for 60 years."

In a heartfelt social media statement posted at the time of John's death, his widow Cindy McCain tweeted, "My heart is broken. I am so lucky to have lived the adventure of loving this incredible man for 38 years. He passed the way he lived, on his own terms, surrounded by the people he loved, in the place he loved best."

Prior to his long political career, McCain lived for more than five years as a prisoner of war in Vietnam. After returning to the United States as a war hero, he later ventured into the world of politics and served as a U.S. senator for Arizona for over three decades. In 2008, John was the official GOP nominee for the presidential race against former president Barack Obama (via The Daily Mail).