In front of his wife, Usha, and their three young children, Vance took an oath during a star-studded inaugural event in Washington, DC, and was sworn in as the 50th US vice president.
The event was moved inside owing to the extremely cold weather, even though it usually takes place outside on the steps of the US Capitol.
He pledged in a brief address to “make America great again,” a catchphrase popularized by President Trump during his first time in office.
He became famous after writing a memoir about his challenging background.
Drawing from Vance’s early years in Ohio and Kentucky, Hillbilly Elegy highlighted the issues that impoverished, white communities face.