Biden's candid responses sound more and more like someone who may still want to run.
"I regret that I am not president because I think there is so much opportunity," Biden told Oprah in a clip from an OWN interview aired exclusively by "Good Morning America" on Thursday. "I think America is so incredibly well positioned."
VIDEO: President Obama awards VP Joe Biden Presidential Medal of Freedom
The former vice president's book goes on sale next week. It's about balancing his son's death, politics, and family.
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"Super Soul Sunday" with Joe Biden airs Sunday, Nov. 12, at 11 a.m. ET/PT on OWN: Oprah Winfrey Network.