Quick Facts
In full:
Jon Llewellyn Kyl
Born:
April 25, 1942, Oakland, Nebraska, U.S.
Died:
September 17, 2026, Phoenix, Arizona, U.S. (aged 84)
Political Affiliation:
Republican Party
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Jon Kyl

United States senator
Also known as: Jon Llewellyn Kyl

Jon Kyl (born April 25, 1942, Oakland, Nebraska, U.S.—died September 17, 2026, Phoenix, Arizona, U.S.) was an American politician who served as a Republican congressman from Arizona in the U.S. House of Representatives (1987–95) and in the U.S. Senate (1995–2013; 2018). He was Senate minority whip from 2007 to 2013.

Kyl earned bachelor’s (1964) and law (1966) degrees from the University of Arizona, where he served as president of the Arizona Law Review. After being admitted to the state bar in 1966, he practiced at a Phoenix law firm for the next 20 years before running for a seat in the U.S. House of Representatives in 1986. In 1994 he successfully campaigned for a seat in the U.S. Senate.

Early in his career as a senator, Kyl pushed for a constitutional amendment that would require a two-thirds majority in both the House and the Senate before federal taxes could be raised. He also advocated for repealing the estate tax. From the late 1990s Kyl was a vocal opponent of research using stem cells taken from human embryos, and he supported the rights of Medicare recipients to negotiate private contracts with their doctors. In 1998 Kyl and Democratic Sen. Dianne Feinstein proposed a constitutional amendment in the form of a crime victims’ bill of rights, which Pres. Bill Clinton first supported and later opposed. When Vice Pres. Al Gore championed a very similar amendment during his 2000 presidential campaign, Kyl harshly criticized him for ensuring the earlier amendment’s failure.

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In 2006 Kyl voted in favor of a bill to authorize the construction of a 700-mile (1,130-km) fence along the U.S.-Mexico border in order to limit illegal immigration. A year later, however, he angered many of his constituents by compromising with Democratic senators, including Edward M. Kennedy, to support a bill that would provide a path to citizenship and temporary guest-worker status for illegal immigrants in the country. The bill failed in the Senate in a June 2007 vote, though Kyl remained active in efforts to reform immigration. In late 2007 he was elected Senate minority whip. Three years later he voiced his support for a controversial Arizona law that cracked down on illegal immigrants. Kyl retired from the Senate in January 2013 after the completion of his third term in office.

In September 2018 Kyl returned to the Senate, appointed to replace John McCain, who had recently died. A special election was scheduled for 2020, though Kyl indicated that he would not run, and on December 31, 2018, he resigned.

The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Tracy Grant.