COLUMBUS, Ohio (AP) — Former President Donald Trump on Monday chose U.S. Sen.

JD Vance of Ohio to be his running mate as he looks to return to the White House. Here are some things to know about Vance, a 39-year-old Republican now in his first term in the Senate: Vance was born and raised in Middletown, Ohio. He joined the Marines and served in Iraq, and later earned degrees from Ohio State University and Yale Law School.

He also worked as a venture capitalist in Silicon Valley. Vance made a name for himself with his memoir, the 2016 bestseller “Hillbilly Elegy ," which was published as Trump was first running for president. The book earned Vance a reputation as someone who could help explain the maverick New York businessman’s appeal in middle America, especially among the working class, rural white voters who helped Trump win the presidency.

“Hillbilly Elegy” also introduced Vance to the Trump family. Donald Trump Jr. loved the book and knew of Vance when he went to launch his political career.

The two hit it off and have remained friends. After Donald Trump won the 2016 election, Vance returned to his native Ohio and set up an anti-opioid charity . He also took to the lecture circuit and was a favored guest at Republican Lincoln Day dinners where his personal story — including the hardship Vance endured because of his mother’s drug addiction — resonated.

Vance's appearances were opportunities to sell his ideas for fixing the country and helped lay the groun.