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JD Vance, Donald Trump's running mate, takes the stage at the Republican National Convention on July 17, 2024.
CNN  — 

Just two years after winning his first run for political office, Ohio Sen. JD Vance is set to become vice president — ushering a new generation into power and offering a potential glimpse at the Republican Party’s future after President-elect Donald Trump’s second term ends.

Vance, 40, was the first millennial on a major party’s presidential ticket and will become the third-youngest vice president in American history.

He is also a former Trump critic whose political evolution, culminating in him becoming the president-elect’s running mate, showcases how Trump has taken over the GOP and reshaped it in his own image.

Raised by his grandparents in southeastern Ohio as his mother battled drug addiction, Vance joined the Marine Corps after high school, and later went on to attend Ohio State University and Yale Law School — where he met his wife, Usha Vance — and become a venture capitalist.

His 2016 memoir, “Hillbilly Elegy,” shot Vance to stardom in a nation seeking to understand the Rust Belt appeal of Trump, who first won the presidency that same year. At the time, as he emerged as a political commentator, Vance was a strident Trump critic.

In private messages, Vance wondered ahead of Trump’s first election whether he was “America’s Hitler” and in 2017 said the then-president was a “moral disaster.” In public, he agreed Trump was a “total fraud” who didn’t care about regular people and called him “reprehensible.”

He changed his tune later, fully embracing Trump by 2020. After courting Trump in person at Mar-a-Lago and through Fox News appearances, he earned the former president’s endorsement in the late stages of a competitive Republican primary in Ohio’s Senate race in 2022. Vance, in his first run for office, went on to win that race.

In a display of loyalty, Vance was one of several potential running mates and Republican lawmakers to stand by Trump’s side at a New York courthouse during his criminal hush money trial earlier this year.

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Brenna Bird, Iowa's attorney general, speaks onstage as a screen shows JD Vance being congratulated by Bernie Moreno after Vance had been formally nominated as Donald Trump's vice president at the 2024 Republican National Convention in Milwaukee on July 15, 2024.

He’s also made clear that his view of the constitutional limits on a vice president’s role in certifying election results differs from that of former Vice President Mike Pence, who drew the ire of Trump in January 2021, when he opted not to interfere in the process of approving electoral votes for Joe Biden.

In Congress, Vance has been a vocal opponent of foreign aid, opposing legislation to send more aid from the US to Ukraine amid Russia’s war.

He has embraced conservative culture wars, sponsoring legislation targeting gender-affirming care for transgender minors and diversity, equity and inclusion programs. But he has also taken populist positions, supporting tariffs, opposing corporate mergers and working with Democratic Sen. Elizabeth Warren of Massachusetts.

How Trump picked Vance

Trump sought to maintain drama in his search for a running mate, delaying his selection until after the assassination attempt against him in Butler, Pennsylvania, and on the first day of the Republican National Convention.

The two had met at Trump’s Mar-a-Lago club the same day Trump was shot in the ear. Then, two days later, Trump called Vance to offer him a spot on the ticket. He announced his pick 20 minutes later on Truth Social.

Ahead of Trump’s selection, the Ohio senator’s supporters, including Trump’s son Donald Trump Jr. and conservative media figure Tucker Carlson, had argued that Vance had the strongest relationship with Trump of a group of finalists that also included Florida Sen. Marco Rubio and North Dakota Gov. Doug Burgum, and that he would be the most loyal selection, multiple sources familiar with the discussions said.

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JD Vance, Donald Trump's running mate, takes the stage at the Republican National Convention in July 2024.
From JD Vance
A young Vance is seen with his grandmother Bonnie Vance in this undated photo. Vance and his sister Lindsey were raised primarily by his grandparents, James and Bonnie Vance.
From JD Vance
Vance and his grandmother Bonnie, whom he called “Mamaw.”
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Vance poses for a portrait near the US Capitol in January 2017.
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Vance appears on “Late Night with Seth Meyers” in March 2017.
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Vance adjusts a fallen sign during a campaign rally in Middletown, Ohio, in July 2021. There, he announced that he would be running for the US Senate seat being left by retiring Sen. Rob Portman.
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Vance greets supporters during a Trump rally in Delaware, Ohio, in April 2022. A week earlier, Trump announced that he was endorsing Vance in the Republican Senate primary.
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Vance, second from right, joins US Reps. Matt Gaetz, left, and Marjorie Taylor Greene, center, as they take pictures with supporters at a campaign rally in Newark, Ohio, in April 2022.
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Vance speaks during a Trump rally in Greensburg, Pennsylvania, in May 2022.
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Vance, coming off a win in the Republican primary, is trailed by reporters as he boards a US Capitol elevator in May 2022. Vance had been invited to attend the Republican Senate Policy Luncheon.
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Vance puts a pin on an interactive map, marking the watershed near his home during a campaign event at the Ohio State Fair in Columbus in August 2022.
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Trump watches as Vance speaks at a rally in Youngstown, Ohio, in September 2022.
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Vance holds his son Vivek as he arrives at a get-out-the-vote rally in Batavia, Ohio, in November 2022. Vance and his wife, Usha, have three children: Ewan, Vivek and Mirabel.
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Vance speaks at a campaign rally in Vandalia, Ohio, a day before the midterm election in November 2022.
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Vance votes in Cincinnati in November 2022.
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Vance speaks to supporters at an election-night watch party in Columbus, Ohio, in November 2022. His wife, Usha, is on the right. Vance defeated US Rep. Tim Ryan in the race.
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Vance, second from right, poses with other Republican senators-elect as they meet with Senate Minority Leader Mitch McConnell in November 2022. From left are Markwayne Mullin, Ted Budd, McConnell, Katie Britt, Vance and Eric Schmitt.
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Vance attends a hearing of the Senate Commerce, Science and Transportation Committee in February 2023.
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Vance, with Trump behind him, speaks to the media at the East Palestine Fire Department station in East Palestine, Ohio, in February 2023. A train carrying hazardous materials, including the toxic chemical vinyl chloride, had derailed in East Palestine, and the wreckage burned for days.
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Vance and fellow Ohio Sen. Sherrod Brown arrive for a Senate hearing about the East Palestine train derailment in March 2023. “I think the most important message to the people of East Palestine is that we will not forget about them in the months and years to come, and I think this committee hearing reinforces that message,” Vance said in his testimony.
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Vance attends the Conservative Political Action Conference in National Harbor, Maryland, in February 2024.
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Vance steps on stage as Trump introduces him during a rally in Vandalia, Ohio, in March 2024.
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Vance watches Trump speaks to the media at Manhattan Criminal Court in New York in May 2024. Vance was one of several potential running mates and Republican lawmakers to stand by Trump’s side during his criminal hush money trial.
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Vance addresses the conservative Turning Point People’s Convention in Detroit in June 2024.
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Vance speaks to the media in Atlanta after the CNN presidential debate between Trump and President Joe Biden in June 2024.
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Iowa Attorney General Brenna Bird speaks at the Republican National Convention in Milwaukee as Vance was formally nominated as Trump's running mate in July 2024.
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Vance and Democrat Tim Walz take part in a vice presidential debate at the CBS Broadcast Center in New York in October 2024.
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Vance waves on stage during an election night party in West Palm Beach, Florida, in November 2024. Vance thanked Trump for the “trust that you placed in me" and promised that he and Trump would “lead the greatest economic comeback in American history.”

They made the case that Vance can appeal to working-class voters viewed as essential to winning the key battleground states in November, given his upbringing in a poor Rust Belt town in Ohio. They also pointed to his wife, Usha Vance — the child of Indian immigrants — as being someone who could appeal to minority voters, the sources said.

Ohio Gov. Mike DeWine, on the convention floor, described Trump’s selection of Vance as “a great day for Ohio.”

“He is consistent with Trump’s appeal to working men and women,” DeWine said, adding that he thought it was wise for Trump to pick someone younger. “Also, someone who shares his desire to expand the base of the Republican Party.”

Controversy on the campaign trail

Vance’s selection led opponents to mine years of podcasts and other interviews that he had participated in. And one of them — a 2021 podcast in which he told Fox News that the Democratic Party was led by “childless cat ladies,” including Vice President Kamala Harris — immediately ignited controversy when it was resurfaced.

Democrats pointed to Vance’s comments as evidence of a GOP hostile to women, in a campaign that saw a sizable gender gap, due in part to Trump’s appointment of conservative Supreme Court justices who would go on to overturn Roe v. Wade’s national abortion rights protections in 2022.

Vance spent weeks explaining that the remarks were not intended to lambast people who do not have children — particularly those who want to but are unable — but rather as a criticism of the Democratic Party as “anti-family.”

Weeks later, he repeated false social media claims about Haitian immigrants eating pets in Springfield, Ohio — and defended his decision to do so despite the lack of evidence to support those claims, arguing that he was attempting to draw attention to the issue of immigration.

“If I have to create stories so that the American media actually pays attention to the suffering of the American people, then that’s what I’m going to do,” Vance told CNN’s Dana Bash in September.