Oprah WinfreyGetty Images/Getty Images for Global CitizenOne of the most influential women in the world, Oprah Winfrey's presidential ambitions have long been a subject of celebrity-watching chatter.
"I want all the girls watching here, now, to know that a new day is on the horizon," she said.
Winfrey said she had met with someone who offered to help with a political campaign, but she declined.
"I've always felt very secure and confident with myself in knowing what I could do and what I could not," Winfrey told Brown.
"I thought, oh gee, I don't have the experience, I don't know enough, and now I'm thinking, 'Oh, oh?'"