US Rep. Liz Cheney has lost her primary to a candidate supported by former President Donald Trump, CNN projects. Harriet Hageman will win the Republican nomination in Wyoming's House race, defeating Cheney.

Cheney was one of 10 House Republicans who voted to impeach Trump for his role in the Capitol insurrection on January 6, 2021. She has since been outspoken about Trump's election lies, highlighting a rift in the party.

Cheney was defiant when faced with criticism from inside her own party and was eventually removed from her position as chair of the House Republican Conference in May 2021. "I will not sit back and watch in silence while others lead our party down a path that abandons the rule of law and joins the former President's crusade to undermine our democracy," Cheney said on the House floor the night before she was stripped of her title. House Republicans voted Rep. Elise Stefanik to the No. 3 leadership position after ousting Cheney.

In September 2021, Cheney was given the vice chair position on the House select committee investigating the January 6 attack on the US Capitol. Within a week, former Trump had endorsed her primary challenger.

Cheney ultimately conceded that she'd lost the Republican primary for Wyoming's at-large House seat to Hageman.

"I called her to concede the race," Cheney said. "This primary election is over. But now, the real work begins."

Cheney is the daughter of former Vice President Dick Cheney, and since 2017, she has represented the same congressional seat in Wyoming that her dad once held. Earlier in her career, she practiced law and held various positions in the US State Department.

Timeline: How Cheney went from Republican scion to party pariah

A young Cheney, right, is seen with her father, Dick; her mother, Lynne; and her sister, Mary, in 1978. Dick Cheney, who was then a US congressman from Wyoming, later became vice president of the United States.
A young Cheney, right, is seen with her father, Dick; her mother, Lynne; and her sister, Mary, in 1978. Dick Cheney, who was then a US congressman from Wyoming, later became vice president of the United States.
David Hume Kennerly/Getty Images
From left, Lynne, Dick, Liz and Mary Cheney run in the yard of their family home in McLean, Virginia, in 1980.
From left, Lynne, Dick, Liz and Mary Cheney run in the yard of their family home in McLean, Virginia, in 1980.
Diana Walker/Getty Images
Dick Cheney fishes with Mary, center, and Liz in August 2000.
Dick Cheney fishes with Mary, center, and Liz in August 2000.
David Hume Kennerly/Getty Images
Liz Cheney, right, joins her sister as they watch election results from a hotel suite in Austin, Texas, in November 2000. Their father would eventually become vice president of the United States.
Liz Cheney, right, joins her sister as they watch election results from a hotel suite in Austin, Texas, in November 2000. Their father would eventually become vice president of the United States.
David Hume Kennerly/Getty Images
Dick Cheney talks with Liz and his wife on the morning after the election in 2000. There wasn't a clear winner yet in the presidential race.
Dick Cheney talks with Liz and his wife on the morning after the election in 2000. There wasn't a clear winner yet in the presidential race.
David Hume Kennerly/Getty Images
Liz Cheney holds the Bible for her father as he's sworn in as vice president in 2001.
Liz Cheney holds the Bible for her father as he's sworn in as vice president in 2001.
Mark Wilson/Newsmakers/Getty Images
Liz Cheney, second from right, rides horses with her parents, her children and her husband in Moose, Wyoming, in August 2004. With her, from left, are her daughter Kate, her daughter Grace, her parents, her daughter Elizabeth and her husband, Phillip Perry. Cheney married Perry, a lawyer, in 1993. They have five children in all.
Liz Cheney, second from right, rides horses with her parents, her children and her husband in Moose, Wyoming, in August 2004. With her, from left, are her daughter Kate, her daughter Grace, her parents, her daughter Elizabeth and her husband, Phillip Perry. Cheney married Perry, a lawyer, in 1993. They have five children in all.
David Hume Kennerly/Getty Images
Cheney, left, joins her parents, her husband and her children on stage after her dad spoke at the Republican National Convention in September 2004.
Cheney, left, joins her parents, her husband and her children on stage after her dad spoke at the Republican National Convention in September 2004.
Spencer Platt/Getty Images
Cheney holds her 2-month-old son, Phillip, as President George W. Bush gave a speech at the Republican National Convention in 2004.
Cheney holds her 2-month-old son, Phillip, as President George W. Bush gave a speech at the Republican National Convention in 2004.
David Hume Kennerly/Getty Images
Cheney speaks in Denver as part of a campaign event for Republican women in October 2004. Cheney left her State Department job to help her father get re-elected.
Cheney speaks in Denver as part of a campaign event for Republican women in October 2004. Cheney left her State Department job to help her father get re-elected.
Helen H. Richardson/Denver Post/Getty Images
Cheney and her father lay flowers at an Auschwitz memorial near Krakow, Poland, in 2005.
Cheney and her father lay flowers at an Auschwitz memorial near Krakow, Poland, in 2005.
David Bohrer/The White House/AP
Cheney walks with her parents to Air Force Two as they prepare to leave for a 10-day trip to the Middle East in 2008.
Cheney walks with her parents to Air Force Two as they prepare to leave for a 10-day trip to the Middle East in 2008.
Paul J. Richards/AFP/Getty Image
Cheney hugs her father at the Conservative Political Action Conference in 2010.
Cheney hugs her father at the Conservative Political Action Conference in 2010.
Cliff Owen/AP
Cheney waits for a news conference to begin in Cheyenne, Wyoming, in July 2013. Cheney was running for the US Senate seat held by longtime incumbent Mike Enzi. She dropped out of the race in January 2014.
Cheney waits for a news conference to begin in Cheyenne, Wyoming, in July 2013. Cheney was running for the US Senate seat held by longtime incumbent Mike Enzi. She dropped out of the race in January 2014.
Marc Piscotty/Getty Images
Cheney talks to people at the Senior Citizens Center in Gillette, Wyoming, in February 2016. Earlier in the day, she announced that she was running for Congress.
Cheney talks to people at the Senior Citizens Center in Gillette, Wyoming, in February 2016. Earlier in the day, she announced that she was running for Congress.
Ed Glazar/Gillette News Record/AP
Cheney hugs a supporter during an election-night party in Casper, Wyoming, in November 2016. She defeated Democrat Ryan Greene to claim Wyoming's lone seat in the House.
Cheney hugs a supporter during an election-night party in Casper, Wyoming, in November 2016. She defeated Democrat Ryan Greene to claim Wyoming's lone seat in the House.
Dan Cepeda/Casper Star-Tribune/AP
Cheney talks with members of the media as she and other freshman members of Congress checked in for orientation in November 2016.
Cheney talks with members of the media as she and other freshman members of Congress checked in for orientation in November 2016.
Tom Williams/CQ-Roll Call/Getty Images
Cheney takes the oath of office next to her father as the 115th Congress met for the first time in 2017.
Cheney takes the oath of office next to her father as the 115th Congress met for the first time in 2017.
Win McNamee/Getty Images
Cheney speaks with House Minority Leader Kevin McCarthy during a news conference in Washington, DC, in October 2019. She became chairwoman of the House Republican Conference in 2019, making her the third-ranking Republican in the House, behind McCarthy and Minority Whip Steve Scalise.
Cheney speaks with House Minority Leader Kevin McCarthy during a news conference in Washington, DC, in October 2019. She became chairwoman of the House Republican Conference in 2019, making her the third-ranking Republican in the House, behind McCarthy and Minority Whip Steve Scalise.
Saul Loeb/AFP/Getty Images
Cheney speaks during a news conference with other Republicans in October 2019. The House <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2019%2F10%2F31%2Fpolitics%2Fhouse-impeachment-inquiry-resolution-floor-vote%2Findex.html" target="_blank">had just passed a resolution</a> that formalized the procedures of an impeachment inquiry into President Donald Trump. No Republicans supported that resolution.
Cheney speaks during a news conference with other Republicans in October 2019. The House had just passed a resolution that formalized the procedures of an impeachment inquiry into President Donald Trump. No Republicans supported that resolution.
Mark Wilson/Getty Images
Trump hands a pen to Cheney after <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2020%2F04%2F23%2Fpolitics%2Fhouse-vote-small-business-aid-vote%2Findex.html" target="_blank">signing a coronavirus relief package</a> in April 2020.
Trump hands a pen to Cheney after signing a coronavirus relief package in April 2020.
Anna Moneymaker/The New York Times/Bloomber/Getty Images
Cheney pets Damon, a 2-month-old yellow lab that is training to be a guide dog, in June 2020. Damon's handler was attending a nearby event with House Democrats.
Cheney pets Damon, a 2-month-old yellow lab that is training to be a guide dog, in June 2020. Damon's handler was attending a nearby event with House Democrats.
Tom Williams/CQ-Roll Call/Getty Images
Cheney heads to the House floor to cast a vote at the US Capitol in February 2021. Cheney was one of <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2021%2F01%2F13%2Fpolitics%2Fhouse-vote-impeachment%2Findex.html" target="_blank">10 House Republicans who voted to impeach Trump</a> for his role in the Capitol insurrection.
Cheney heads to the House floor to cast a vote at the US Capitol in February 2021. Cheney was one of 10 House Republicans who voted to impeach Trump for his role in the Capitol insurrection.
Tasos Katopodis/Getty Images
Cheney speaks about the US-Mexico border policy at a news conference outside the US Capitol in March 2021. In Congress, Cheney has high ratings from conservative groups. Like her father, she is a fiscal conservative and defense hawk.
Cheney speaks about the US-Mexico border policy at a news conference outside the US Capitol in March 2021. In Congress, Cheney has high ratings from conservative groups. Like her father, she is a fiscal conservative and defense hawk.
Drew Angerer/Getty Images
President Joe Biden fist-bumps Cheney as he arrives to speak to a <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2021%2F04%2F28%2Fpolitics%2Fgallery%2Fbiden-first-address-joint-session-congress%2Findex.html" target="_blank">joint session of Congress</a> in April 2021.
President Joe Biden fist-bumps Cheney as he arrives to speak to a joint session of Congress in April 2021.
Chip Somodevilla/Bloomberg/Getty Images
Cheney speaks to reporters outside the US Capitol in July 2021. <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fvideos%2Fpolitics%2F2021%2F07%2F21%2Fliz-cheney-kevin-mccarthy-capitol-riot-committee-vpx.cnn" target="_blank">Cheney blasted House Minority Leader Kevin McCarthy's decision</a> to pull all Republicans from the select committee investigating the January 6 attack on the Capitol.
Cheney speaks to reporters outside the US Capitol in July 2021. Cheney blasted House Minority Leader Kevin McCarthy's decision to pull all Republicans from the select committee investigating the January 6 attack on the Capitol.
Anna Moneymaker/Getty Images
Cheney and Rep. Adam Kinzinger listen during a June 2022 hearing of the House select committee investigating the January 6, 2021, attack on the US Capitol. In February, the Republican National Committee <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2022%2F02%2F04%2Fpolitics%2Fliz-cheney-adam-kinzinger-censure-rnc%2Findex.html" target="_blank">formally censured</a> Cheney and Kinzinger for their roles on the January 6 committee.
Cheney and Rep. Adam Kinzinger listen during a June 2022 hearing of the House select committee investigating the January 6, 2021, attack on the US Capitol. In February, the Republican National Committee formally censured Cheney and Kinzinger for their roles on the January 6 committee.
Drew Angerer/Getty Images
Arizona House Speaker Rusty Bowers is hugged by Cheney after his testimony at a January 6th hearing in June 2022. Bowers, a Republican, defied a scheme to overturn the election results in his state, and he gave emotional testimony about the impact that had. <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fpolitics%2Flive-news%2Fjanuary-6-hearings-june-21%2Fh_29dae2b5e7e4b560fa75d919562ec68e" target="_blank">He described "disturbing" protests outside his home,</a> and he read a passage from his personal journal about friends who had turned on him.
Arizona House Speaker Rusty Bowers is hugged by Cheney after his testimony at a January 6th hearing in June 2022. Bowers, a Republican, defied a scheme to overturn the election results in his state, and he gave emotional testimony about the impact that had. He described "disturbing" protests outside his home, and he read a passage from his personal journal about friends who had turned on him.
Doug Mills/Pool/The New York Times/Getty Images
Cheney arrives with her father, former Vice President Dick Cheney, to vote in Jackson, Wyoming, during the Republican primary election on August 16.
Cheney arrives with her father, former Vice President Dick Cheney, to vote in Jackson, Wyoming, during the Republican primary election on August 16.
Jabin Botsford/The Washington Post via AP
Cheney speaks to a crowd at her primary Election Day gathering in Jackson, Wyoming, after losing to Trump-supported Harriet Hageman.
Cheney speaks to a crowd at her primary Election Day gathering in Jackson, Wyoming, after losing to Trump-supported Harriet Hageman.
Jae C. Hong/AP