'Do I regret not being president? Yeah, I do': Joe Biden tells Oprah

Joe Biden's been constantly asked whether he's considered running for president in 2020. One person who could get that answer out in a perfect soundbite? Oprah Winfrey, of course.
The former U.S. Vice President sat down for a chat with my personal presidential preference, Winfrey, to discuss the possibility of a presidential campaign, the tragic loss of his family, and his new memoir, Promise Me, Dad: A Year of Hope, Hardship, and Purpose.
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