Joni Ernst Bio
Joni Kay Ernst (née Culver; born July 1, 1970) is an American politician and retired military officer serving since 2015 as the junior United States senator from Iowa. A Republican, she represents a state with a strong agricultural tradition and a tradition of military service. Ernst has built a career around fiscal conservatism, support for veterans, and reforms to major federal entitlement programs.
Before entering national politics, she served 23 years in the U.S. Army Reserve and the Iowa Army National Guard, retiring as a lieutenant colonel. She also worked in local and state government as Montgomery County auditor and as a member of the Iowa State Senate. In September 2025, Ernst announced that she would not seek reelection in 2026, making her final term in the Senate her last.
Early Life and Background
Joni Kay Culver was born on July 1, 1970, in Red Oak, Iowa, where she grew up in a rural Midwestern household. Her parents are Richard Culver and Marilyn Culver. She was raised in a community where farming, livestock, and small-town values shaped daily life, and her childhood included the kinds of chores common to Iowa farm families.
Ernst graduated from Stanton Community School District High School and went on to earn a bachelor’s degree from Iowa State University. She later completed a Master of Public Administration at Columbus State University. As a young woman, she joined the United States Army Reserve and later transferred to the Iowa Army National Guard, beginning a long military career that would eventually take her to Kuwait during the Iraq War.
Path to US Politics
Ernst’s entry into politics began at the local level when she was elected Montgomery County auditor in 2004, defeating the incumbent. She held that office from January 2005 to January 2011, running unopposed in her 2008 reelection. Her work as auditor gave her a firm grounding in county-level budgeting and administration.
In 2011, Ernst won a special election for the Iowa State Senate, representing District 12 in southwestern Iowa. She was reelected in 2012. During her time in the state legislature, she co-sponsored measures on gun rights, environmental rule nullification, and same-sex marriage. Her state-level experience and strong network of rural Iowa supporters positioned her for a run at the U.S. Senate seat being vacated by retiring Democrat Tom Harkin.
Joni Ernst Career
Early Career (2005–2014)
Ernst’s first notable political victory came in 2004 when she won the Montgomery County auditor’s race. She spent the next several years building a reputation as a conservative voice in southwestern Iowa, balancing her elected role with ongoing service in the Iowa Army National Guard.
Her state Senate tenure from 2011 to 2014 expanded her policy portfolio and her statewide name recognition. She used this platform to run for the U.S. Senate in 2014, winning a competitive Republican primary with the help of outside spending and a memorable campaign ad that drew on her experience castrating pigs to make a point about cutting federal spending.
U.S. Senate Election Breakthrough (2014–2015)
In the 2014 general election, Ernst defeated Democratic challenger Bruce Braley, winning by about 94,000 votes. With that victory, she became the first woman elected to represent Iowa in either chamber of the U.S. Congress. She was sworn in on January 3, 2015, becoming Iowa’s first new U.S. senator since Tom Harkin in 1985.
Days after being sworn in, Ernst delivered the official Republican response to President Barack Obama’s State of the Union address on January 20, 2015, introducing herself to a national audience. Her early Senate work focused on veterans’ affairs, agricultural policy, and efforts to reform federal entitlement programs.
Senate Tenure and Republican Leadership (2015–Present)
Over the course of her Senate career, Ernst has held several leadership positions within the Republican conference. In 2018, she was elected vice chair of the Senate Republican Conference. In 2019, she became the first female Republican appointed to the Senate Judiciary Committee, serving alongside Senator Marsha Blackburn. From 2023 to 2025, she served as chair of the Senate Republican Policy Committee, making her the fourth-ranking Republican in the Senate.
She was easily reelected in 2020, defeating Democratic nominee Theresa Greenfield. In 2024, Ernst announced a run for Senate Republican Conference chair, but the position went to Senator Tom Cotton. On September 2, 2025, Ernst announced that she would not seek reelection in 2026, signaling the closing chapter of her Senate career.
Notable Events and Milestones
Ernst was widely mentioned as a possible vice-presidential running mate for Donald Trump in 2016, though Trump ultimately selected Indiana Governor Mike Pence. She has introduced legislation including “Sarah’s Law” in 2016 and the Food Security and Farm Protection Act in 2025. In 2020, she published her memoir, Daughter of the Heartland: My Ode to the Country That Raised Me. Her career has been marked by a focus on Iowa’s agricultural economy, the state’s military families, and a consistent push to scale back federal involvement in areas like education and the environment.
Joni Ernst Family
Family Background and Personal Lineage
Ernst was born to Richard Culver and Marilyn Culver in Red Oak, Iowa, and raised in the small town of Stanton. Her Midwestern, rural upbringing has remained a central theme of her political identity, and she often points to her Iowa roots as a guiding influence on her public service.
Personal Life
In 1992, Joni Culver married Gail Ernst, and the couple had one child. In August 2018, Ernst announced that she and her husband were filing for divorce, which was finalized in January 2019. In her first interview after the divorce, Ernst publicly revealed that she had been raped during her college years. She is a lifetime member of several civic and veterans’ organizations, including the Veterans of Foreign Wars, and worships at Mamrelund Lutheran Church in Stanton, Iowa.