Sen. Elizabeth WarrenElizabeth Ann WarrenWarren warns another 'economic crash' is coming The Hill's Morning Report — Mueller Time: Dems, GOP ready questions for high-stakes testimony Biden's lead narrows in early voting states: poll MORE (D-Mass.) on Wednesday praised Oprah Winfrey for her speech at the Golden Globe Awards earlier this week, while avoiding speculation about the talk show host's prospects as a 2020 presidential contender.

Asked by CNN's Alisyn Camerota if Americans were "hungry" for another "mega-celebrity billionaire" as president, Warren said, "I don't know."

Earlier, Warren seemed to laugh off the question when asked about Winfrey running for president.

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"Hearing Oprah's voice, and her energy, and her passion and her determination, it's inspiring to all of us," Warren said. "And she shows great leadership, and I'm delighted that she's doing it." 

"Delighted that she may run for president?" Camerota asked.

"You know, that'll be up to Oprah," Warren responded. "I don't think anyone tells Oprah what to do." 

Winfrey, the billionaire media mogul and longtime talk show host, gave an impassioned speech on racial justice and sexual harassment at Sunday's Golden Globes, fueling speculation that she might run for president. 

While some sources close to Winfrey have said she is not considering a bid for the presidency, she currently leads Trump by 48 to 38 percent in a hypothetical matchup for the 2020 election, according to a new poll

Warren also responded enthusiastically to the same question from Bloomberg's Kevin Cirilli in an interview alongside Sen. Mark WarnerMark Robert WarnerElection security to take back seat at Mueller hearing Top Democrats demand security assessment of Trump properties Senate passes bill making hacking voting systems a federal crime MORE (D-Va.).

"Go Oprah!" Warren said. "Oprah's terrific." 

"She'd bring enormous energy to anything she takes on," Warner added.