Claire McCaskill Bio
Claire Conner McCaskill (born July 24, 1953) is an American politician, attorney, and author who served as a United States Senator from Missouri from 2007 to 2019. A member of the Democratic Party, she was the first woman elected to the U.S. Senate from Missouri, and as of 2025 she remains the last Democrat to have represented Missouri in that chamber. After leaving the Senate, McCaskill joined NBC News and MSNBC as a political analyst, where she frequently appears on programs such as Deadline: White House and Morning Joe.
Over a career that spanned more than three decades, McCaskill built a reputation as a moderate voice within her party. She previously served as Missouri State Auditor from 1999 to 2007, as Jackson County Prosecutor from 1993 to 1998, and as a member of the Missouri House of Representatives from 1983 to 1989. She is a graduate of the University of Missouri and the University of Missouri School of Law, and she published her memoir, Plenty Ladylike, in 2015.
Early Life and Background
Claire Conner McCaskill was born on July 24, 1953, in Rolla, Missouri, and grew up in the small towns of Houston and Lebanon before her family settled in Columbia, Missouri. She attended David H. Hickman High School in Columbia, where she was active in student life as a cheerleader, Pep Club president, debate club member, musical cast member, and homecoming queen. These early experiences helped shape her lifelong interest in public speaking and civic engagement.
McCaskill came from a politically engaged family. Her father, William Young McCaskill, served as a state insurance commissioner under Governor Warren E. Hearnes. Her mother, Betty Anne McCaskill, was the first woman elected to the Columbia City Council and later ran for a seat in the Missouri House of Representatives. McCaskill went on to attend the University of Missouri, where she joined Kappa Alpha Theta sorority and earned a Bachelor of Arts in political science in 1975. She received her Juris Doctor from the University of Missouri School of Law in 1978, and in the summer of 1974 she studied at Georgetown University’s Institute on Comparative Political and Economic Systems.
Path to U.S. Politics
Following law school, McCaskill clerked for the Missouri Court of Appeals for the Western District and then joined the Jackson County prosecutor’s office, where she specialized in arson cases. In 1982, she was elected to represent the Brookside neighborhood of Kansas City in the Missouri House of Representatives, beginning a career in elected office that would last more than three decades. During her time in the State House, she built key relationships with senior Democratic figures and earned a reputation as a skilled legislator.
After a brief period in private practice at a Kansas City law firm from 1989 to 1991, McCaskill returned to public service. She won a seat on the Jackson County Legislature in 1990 and was elected Jackson County Prosecutor in 1992, becoming the first woman to hold that office. Her success in county politics paved the way for her 1998 election as Missouri State Auditor, making her only the second woman to hold the post. These stepping-stone positions established her as a leading Democratic figure in Missouri long before she reached the national stage.
Claire McCaskill Career
Early Career (1982–1998)
McCaskill’s early career was rooted in state and county government. After winning a seat in the Missouri House of Representatives in 1982, she served in the chamber until 1989, focusing on issues such as criminal justice reform and consumer protection. Her willingness to take on tough topics, including testifying in 1991 in favor of a bill that would remove marriage as a defense against spousal rape, helped establish her as a determined advocate for victims’ rights.
In 1992, McCaskill was elected Jackson County Prosecutor, the first woman to hold the position, and she was reelected in 1996 with 71 percent of the vote. Her tenure was marked by a tough-on-crime approach and an emphasis on arson prosecution. These early positions provided her with the experience and political base needed to mount a successful campaign for a statewide office.
Breakthrough (1998–2006)
McCaskill’s breakthrough came in 1998, when she was elected as the 34th State Auditor of Missouri. She was reelected in 2002 with 60 percent of the vote, even as her Republican opponent, Al Hanson, drew attention for his prior fraud conviction. Her two terms as auditor cemented her reputation as a fiscal watchdog and one of the Democratic Party’s strongest vote-getters in Missouri.
In 2004, McCaskill ran for governor of Missouri, defeating incumbent Democratic Governor Bob Holden in the primary and becoming the first challenger to defeat an incumbent governor in a Missouri primary. Although she lost the general election to Republican Matt Blunt by a margin of 51 percent to 48 percent, the campaign positioned her for a statewide run two years later.
In 2006, McCaskill defeated Republican incumbent Jim Talent 50 percent to 47 percent to win a full Senate term. Her victory made her the first woman elected to the U.S. Senate from Missouri, a historic milestone that defined the next phase of her career.
Democratic Party Era (2006–2019)
During her time in the Senate, McCaskill built a reputation as one of the most independent-minded members of her caucus. The National Journal frequently ranked her among the most moderate senators, and The Washington Post reported in 2012 that she was the second-most-likely Democratic senator to vote against her party. In 2011, she became Missouri’s senior senator when Roy Blunt took office as the junior senator. She served on the Senate Armed Services Committee, the Senate Homeland Security Committee, and chaired the Select Committee for the Impeachment of Samuel B. Kent.
McCaskill was reelected in 2012, defeating Republican Todd Akin 55 percent to 39 percent after Akin’s controversial comments about women’s bodies triggered a backlash. During her second term, she championed legislation on military sexual assault, disaster recovery oversight, and prescription drug monitoring. She also endorsed Barack Obama in 2008 and was a top surrogate for Hillary Clinton in 2016. Her 2018 re-election bid ended in defeat, as Republican Josh Hawley won 51 percent to her 46 percent, in a race marked by Russian hacking attempts and controversy over secretly recorded campaign footage.
Notable Events and Milestones
McCaskill’s career features several defining moments, including her 2006 Senate victory as the first woman elected to the chamber from Missouri, her sponsorship of the Victims Protection Act of 2014, and her central role in the 2008 Obama Missouri primary. She also gained attention for her work on sexual assault in the military, her push to ban bump stocks after the 2017 Las Vegas shooting, and her vocal opposition to Trump’s trade tariffs. Her 2018 loss to Hawley closed a chapter in Missouri Democratic politics and ushered in her transition to a media career.
Claire McCaskill Career Wins
Claire McCaskill built a strong record of electoral victories across her career, with notable wins in state and federal races. Her success at multiple levels of Missouri politics made her one of the most durable Democratic candidates in a traditionally Republican state.
Senate and Statewide Highlights
McCaskill won her U.S. Senate seat in 2006 by defeating Republican incumbent Jim Talent, then secured a second term in 2012 with a decisive 55 percent to 39 percent victory over Todd Akin. As State Auditor, she was elected in 1998 and reelected in 2002 with 60 percent of the vote, and she was the first challenger to defeat an incumbent Missouri governor in a primary when she toppled Bob Holden in 2004.
Other Wins & Achievements
Earlier in her career, McCaskill won election to the Missouri House of Representatives in 1982, was elected Jackson County Prosecutor in 1992 as the first woman to hold the office, and was reelected in 1996 with 71 percent of the vote. She was also elected to the Jackson County Legislature in 1990, giving her a foundation in local government that fueled her later statewide success.
Claire McCaskill Family
Family Background and Political Lineage
McCaskill’s family had deep roots in Missouri politics. Her father, William Young McCaskill, served as state insurance commissioner, and her mother, Betty Anne McCaskill, was the first woman elected to the Columbia City Council. Betty Anne later lost a state House race to Leroy Blunt, father of U.S. Senator Roy Blunt and grandfather of former Governor Matt Blunt. McCaskill’s mother died on October 29, 2012, at the age of 84.
Personal Life
McCaskill was married to David Exposito, with whom she had three children, before divorcing in 1995. Exposito was found murdered in Kansas City, Kansas, in 2005, and the case has never been solved. In 2002, she married Joseph Shepard, a securities fraud examiner. The couple maintains residences in Washington, D.C., and Kirkwood, Missouri. McCaskill is a convert to Roman Catholicism, and she publicly announced a breast cancer diagnosis in 2016, later stating that her prognosis was good and that she expected a full recovery.