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PHOENIX — <\/span>Former U.S. Sen. Jon Kyl, a longtime Republican lawmaker from Arizona who shaped landmark water policies in the U.S. West and guided the confirmation of Supreme Court Justice Brett Kavanaugh, has died. He was 84.<\/p>\n Kyl died Wednesday night from a neurological disorder, said Gordon James, a communications professional who is longtime friends with the Kyl family. Kyl had withdrawn from public life in December 2025 after announcing he had been diagnosed with dementia<\/a>.<\/p>\n Kyl spent almost three decades in Congress, serving in both chambers, and watched his party undergo a drastic transformation, with his career spanning Ronald Reagan\u2019s presidency to President Donald Trump\u2019s first term.<\/p>\n Former Republican Arizona Gov. Doug Ducey, who considered Kyl a mentor, described the former senator in a February 2025 interview with The Associated Press as a true statesman and a \u201cworkhorse\u201d among Washington, D.C.\u2019s \u201cshowhorses.\u201d<\/p>\n \u201cIf you saw him on the plane, he was sitting in the aisle, in coach, and he was reading,\u201d Ducey said. \u201cAnd he was reading potential bills or Senate business.\u201d<\/p>\n Kyl rose to a leadership position during his last full term in the Senate, when his Republican colleagues selected him as minority whip. After retiring from politics in 2013 and becoming a lobbyist, Kyl returned to Congress briefly in 2018, when Ducey appointed him to fill the vacancy<\/a> left by the late U.S. Sen. John McCain.<\/p>\n His appointment drew high praise from Trump, who said he was looking forward to working with \u201cthe extraordinary senator.\u201d Kyl stayed for less than four months<\/a> before rejoining lobbying firm Covington and Burling.<\/p>\n \u201cAt the federal level, and I regret to say that this is the case, but probably a lot of my better achievements were in preventing bad things from happening (rather) than forcing good things to happen,\u201d Kyl said in a 2012 conversation with former U.S. Supreme Court Justice Sandra Day O\u2019Connor<\/a>.<\/p>\n Kyl was born in Oakland, Nebraska, on April 25, 1942, and grew up in a rural farming district in Iowa that his father represented in the U.S. House. At 18, he headed southwest to attend the University of Arizona, where he met his wife, Caryll, and earned a law degree.<\/p>\n Before being elected for the first of his four terms in the House in 1987, Kyl was a key participant in shaping Arizona\u2019s 1980 groundwater code as a lawyer representing a large water utility. The first-of-its-kind code created a regulatory framework for managing groundwater in the drought-stricken state<\/a>, largely centering on the state\u2019s population centers, including Phoenix and Tucson.<\/p>\n In 2004, Kyl authored legislation that provided one of the largest tribal water rights settlements<\/a>, which, after a decades-long battle, gave the Gila River Indian Community enough water to fill nearly 313,500 Olympic-sized swimming pools annually. Republican U.S. Sen. Mitch McConnell of Kentucky, who later served as majority leader, called Kyl’s work ethic \u201clegendary\u201d in a 2012 floor speech and said Kyl had labored mostly behind the scenes for 15 years to advance the settlement.<\/p>\n \u201cIt was one of the hardest things I\u2019ve ever done, but I was in a position to be the catalyst,\u201d Kyl told the Phoenix New Times in a 2006 interview. \u201cThere wasn\u2019t anybody else who could do that water deal. And it had to be done.\u201d<\/p>\n Arizona State University\u2019s Kyl Center for Water Policy takes its name from him. Its director, Sarah Porter, said Kyl was generous with his time and an effective member of the state\u2019s congressional delegation who took a practical approach to water policy.<\/p>\n \u201cHe\u2019s always sort of cared about the public good and been able to think about, \u2018What will this mean for the generations to come?\u2019\u201d Porter said, adding that Kyl remained \u201cquite a dynamo\u201d until recent years, as his wife battled health problems.<\/p>\n Ducey said Kyl was a \u201cgiant\u201d in the Senate, further describing him as serious, engaging, forthright and thoughtful. His biggest impacts, Ducey said, came from the way he kept the Republican caucus together in opposition to Obamacare and his staunch support of Israel.<\/p>\n Kyl also backed legislation to authorize construction of a fence stretching hundreds of miles along the U.S.-Mexico border. He later joined with Democrats to support a bill that would provide a path to citizenship and temporary guest-worker status for those in the U.S. without authorization. The proposal ultimately failed.<\/p>\n As a lobbyist, Kyl helped guide the confirmation of Trump-picked U.S. Supreme Court Justice Brett Kavanaugh<\/a>. When Kyl returned to the halls of Congress in 2018, he was known as Kavanaugh\u2019s chief Sherpa \u2014 an informal but widely known term for a nominee\u2019s guide to the political tundra in the Senate.<\/p>\n In a statement disclosing his dementia diagnosis, Kyl harkened back to the words of Reagan, when the former president revealed his own Alzheimer\u2019s diagnosis and said he was starting a journey that would lead him to the end of his life.<\/p>\n Kyl said he shared Reagan\u2019s confidence for Arizona and the nation\u2019s future, and that despite his diagnosis, he was a \u201cvery fortunate man.\u201d<\/p>\n<\/div>\n