Former U.S. Sen. Jon Kyl has died at 84, prompting tributes from across Arizona's political spectrum, Arizona Daily Independent reported in a staff roundup of statements: https://arizonadailyindependent.com/2026/09/17/arizona-leaders-mourn-passing-of-jon-kyl/. The Kyl family said, "We know Jon belonged to all of Arizona, a state he loved with vigor."
Arizona Capitol Times reported the family cited complications from a neurological disease and noted Kyl's December 2025 dementia diagnosis and withdrawal from public life: https://azcapitoltimes.com/news/2026/09/17/former-arizona-sen-jon-kyl-dies-at-84/ (Jakob Thorington).
The consequence is immediate and lasting. Kyl's passing removes one of Arizona's most effective policy hands on water and national security. His work built deals that still govern the state's water future and set a standard of seriousness that today's showy politics rarely meets.
Gov. Katie Hobbs posted condolences on X, calling Kyl a "dedicated statesman who always cared deeply for our state," per ADI. Her message fit the bipartisan tone, even as Kyl's approach often clashed with the current Capitol's performative drift.
Attorney General Kris Mayes called Kyl "a man of integrity who dedicated his life to public service," according to ADI, a sentiment that drew ready agreement from Republicans. Senate President Warren Petersen amplified a praise thread, writing Kyl was a "work horse not a show horse" and adding, "Arizona could use another Senator like him."
Tributes spanned both parties. ADI captured statements from Sen. Mark Kelly highlighting "landmark" tribal water settlements, Rep. Greg Stanton lauding Kyl's policy mastery, and Republicans Andy Biggs, Paul Gosar, Juan Ciscomani, former Govs. Doug Ducey and Jan Brewer, among others, describing him as principled, effective, and humble. The Arizona House Democrats account also offered condolences.
Capitol Times detailed Kyl's record. He served in the U.S. House starting in 1987, then three Senate terms beginning in 1995, and rose to Senate Republican Whip in 2007. He briefly returned in 2018 by appointment to fill the vacancy after Sen. John McCain's death. TIME magazine named him among the best senators in 2006 and later to its 2010 list of 100 most influential people. He also helped shape the state's 1980 Groundwater Management Act as an attorney for Salt River Project.
On water, Capitol Times credited Kyl as principal sponsor of the 2004 Arizona Water Settlements Act, enabling major tribal settlements involving the Gila River Indian Community and the Tohono O'odham Nation. Central Arizona Project General Manager Brenda Burman, a former Kyl staffer, called him "the driving force" behind the 2004 act and "a true statesman," and the Bureau of Indian Affairs previously credited his stakeholder work.
Kyl also left a security legacy. Capitol Times noted his role as vice chair of the Congressional Commission on the Strategic Posture of the United States and the University of Arizona's creation of the Kyl Institute for National Security. U of A President Suresh Garimella said Kyl's record on national security and water "left Arizona and the nation better than he found them."
