A look into Sen. JD Vance's life from a Marine to a politician as he makes history at the RNC as the first post-9/11 veteran on a major party's presidential ticket.

Republican strategist Tricia McLaughlin and former Democratic Sen. Heidi Heitkamp provide their views on the 2024 election.

Ohio Sen. JD Vance delivered his first speech as Trump's running mate on Day 3 of the Republican National Convention Wednesday, speaking at length about the former president.

As the families of Donald Trump and JD Vance enter the spotlight, who they are and what their anticipated roles in the Trump campaign will be.

“I do not think that it is in America's interest to continue to fund an effectively never-ending war in Ukraine,” Vance said. "We’ve done more than our fair share.”

The Ohio senator and ‘Hillbilly Elegy’ author’s evolution since he burst onto the political scene in 2016.

Ohio Sen. JD Vance delivered his first speech as Trump's running mate, speaking at length about the former president, including the assassination attempt.

Usha Chilukuri Vance was the penultimate speaker of the night and talked personally about their relationship and JD Vance's work in the Senate.

Day 3 of the Republican National Convention featured the prime-time debut of JD Vance introducing himself both to Republicans and Americans nationwide. (edited)

ABC News' Linsey Davis speaks with former Republican presidential candidate Vivek Ramaswamy about his longtime friendship with JD Vance and Vance's qualifications for Vice President.

Senator JD Vance prepares to introduce himself to the nation as he takes the stage at the Republican National Convention to make the case for Donald Trump.

Several people are on Wednesday's RNC lineup, including Donald Trump’s running mate, JD Vance. Coign VP of communications and former RNC staff, Cassie Smedile joins the show.

Vance spoke of unity while making a dig at President Biden: "Donald Trump got shot and toned the temperature down. That's what a real leader does."

In a short video released early Wednesday, Vice President Kamala Harris calls out Donald Trump's new running mate, Sen. J.D. Vance, on his public comments and voting history.

Ohio Senator J.D. Vance makes first campaign appearance following announcement to become Donald Trump's running mate.

RNC attendees praised J.D. Vance's youth, service and, perhaps most importantly, his commitment to Trump's agenda.

Donald Trump's running mate, Ohio Sen. J.D. Vance, says he can help the former president win the Rust Belt.

Born Usha Chilukuri, the wife of Trump's newly announced VP pick, grew up in San Diego, California, and is the daughter of Indian immigrants.

Vance and Harris said they are looking forward to debating each other, according to sources, but no specifics were discussed.

J.D. Vance's wife left her law firm after Donald Trump made his VP announcement.

With Vance now the official vice presidential nominee for the Republican Party, how does he match up with Vice President Kamala Harris?

The 39-year-old senator from Ohio whose 2016 memoir, "Hillbilly Elegy," was turned into a Netflix adaptation in 2020, would be one of the youngest vice presidents in U.S. history if elected.

ABC News correspondent Terry Moran and Katherine Faulders provide more information on the 39-year-old senator.

The youngest VP nominee in decades, J.D. Vance echoes Donald Trump's populist conservative message and could continue his legacy for years.

ABC News’ Jon Karl shares the reaction to former President Donald Trump choosing the Ohio senator as his new vice presidential candidate.

Donald Trump tapped a vocal defender in the form of Sen. J.D. Vance, R-Ohio, to join his ticket -- and in doing so, is helping set the course of the GOP's future.

Former New Jersey Gov. Chris Christie reacted to former President Donald Trump's selection of J.D. Vance as his running mate.

President Joe Biden called the Ohio senator a "clone of Trump" after J.D. Vance was selected to be Donald Trump's running mate.

ABC News' John Katko and Democratic strategist Marsha Espinosa join the show.

ABC News spoke to delegates outside the Republican National Convention after Donald Trump named J.D. Vance as his running mate.

J.D. Vance could now reach new heights in his transformative career, as former President Donald Trump has selected him as his running mate.

GOP front-runner Donald Trump has officially announced his running mate is Ohio Sen. J.D. Vance. Attorney Jerry Goldfeder of Fordham Law joins the show.

The Ohio senator will be on the ballot as Trump's running mate come November. RNC Strategic Communications Director Tommy Pigott joins from Milwaukee.

The former House speaker comments on Trump’s running mate, the 39-year-old first-term senator from Ohio.

Republican J.D. Vance from Ohio was elected to the U.S. Senate in 2022.

Former President Donald Trump picked Ohio Sen. J.D. Vance as his running mate, placing a young, ideological ally alongside him on the Republican 2024 ticket.

ABC News’ Rachel Scott spoke to the former president’s son about his father's choice of running mate.

J.D. Vance jumped on the national stage eight years ago through his book "Hillbilly Elegy." Now he's Donald Trump's running mate.

Republican J.D. Vance was elected to the U.S. Senate in 2022 from Ohio.

Some of those under consideration of being former President Donald Trump's running mate have begun moderating their stance on abortion to fall in line with him.

Former President Donald Trump's campaign has begun the process of formally requesting information from a small handful of potential running mates, ABC News has learned.

As Trump pushes false claims about the 2020 election, those in the running to be his VP pick have been cautious when asked if they'll accept the 2024 election results.

Why Trump's vice presidential pick might not matter as much as you think.

With Donald Trump expected to soon make his vice presidential pick known, he offered more insight into characteristics he likes of each candidate on his shortlist.