Campbell died of natural causes surrounded by his family, his daughter, Shanan Campbell, confirmed to The Associated Press.
FILE – Sen. Ben Nighthorse Campbell, R-Colo., chairman of the Senate Committee on Indian Affairs, delivers a parting statement to witness Michael Scanlon, President of Capitol Campaign Strategies, as he takes the fifth at an oversight hearing on the In Re tribal lobbying matters in Washington, Nov. 17, 2004. (AP Photo/Gerald Herbert, File)
FILE – Retired U.S. Sen. Ben Nighthorse Campbell jokes with a reporter as his image is seen reflected in a mirror positioned in a hutch in his home in Ignacio, Colo., Jan. 11, 2005. (AP Photo/David Zalubowski, File)
FILE – Kenny Frost, left, and former Colorado Sen. Ben Nighthorse Campbell speaks before the commemoration of the Sand Creek Massacre National Historic Site near Eads, Colo., April 28, 2008. (Kirk Speer/The Gazette via AP, File)
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FILE – Sen. Ben Nighthorse Campbell, R-Colo., chairman of the Senate Committee on Indian Affairs, delivers a parting statement to witness Michael Scanlon, President of Capitol Campaign Strategies, as he takes the fifth at an oversight hearing on the In Re tribal lobbying matters in Washington, Nov. 17, 2004. (AP Photo/Gerald Herbert, File)