Since Winfrey's speech at the Golden Globes on Sunday, where she gave an impassioned defense of abused women, told personal stories of her childhood and said a new day was on the horizon for women, speculation has increased about a bid.
"I like Oprah but I don't think she's going to run".
He also appeared on her show in 1988, saying he was unlikely to run for president.
'I do think this though guys, I do think she's intrigued by the idea, I do think that, ' King said. Known to millions by her first name, Winfrey, 63, has been a cultural force in the country for decades.
She said the president will be running on his "incredible achievements".
But others point to Trump's lack of experience, and the tumultuous first year of his presidency, as a good reason to look at the pool of experienced politicians to challenge Trump.More news: Reconsider travel: United States updates advisory for its citizens headed to Pakistan
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Trump's daughter Ivanka endorsed Oprah's message, if not a political future, in a tweet Monday: "Just saw ΓåòOprah's empowering and inspiring speech at last night's.GoldenGlobes".
The nine-minute speech generated two standing ovations from the Hollywood glitterati and prompted 220,000 posts on social media mentioning the words "Oprah" and "president" in just 24 hours, said Mr Todd Grossman of social media analytics company Talkwalker.
Even so, for Democrats in early voting states, and perhaps for a public that largely disapproves of President Donald Trump's job performance, the notion of a popular media figure as a presidential candidate is not as unusual as it once seemed, given the NY real estate mogul and reality TV star now in the White House.
But he added: "Yeah, I'll beat Oprah". "She would absolutely do it".
Trump's son, Donald Trump Jr, has reacted and has called the idea of Oprah as president "strange", reported The Associated Press. The movement has encouraged more women to speak out about their experiences of sexual harassment and assault.
Winfrey has previously said she has no interest in running for office and King said she believed her friend's position was unchanged.
"It's up to the people", Graham told The Los Angeles Times. She wasn't writing this thinking, 'I'm going to launch my presidential campaign, ' which, by the way, she's not even thinking about having a presidential campaign.