Arianna Huffington, the editor-in-chief of the liberal-leaning Huffington Post, said on Sunday it's "obvious" that Hillary ClintonHillary Rodham ClintonObama to net 0K for Wall Street speech: report O'Reilly: Fans will be 'shaken' when truth comes out about Fox exit Overnight Cybersecurity: White House adviser ditches cyber panel over 'fake news' | Trump cyber order 'close' | GOP senator pushes for clean renewal of foreign intel law MORE is running for president in 2016.

"She's obviously running," Huffington said on ABC's "This Week."

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She added, however, that Clinton is "sending a bad message to women" in emerging back on the public stage so soon after her retirement.

"What I was hoping is that she would have been taken more time to become what she called, herself, 'untired,'" Huffington said.

"She hasn't given herself that time and I think that's sending a bad message to women, that the only way to succeed...is to drive yourself [into the] ground. After all, she collapsed. She had a concussion," she added.

Clinton's December concussion raised questions about her health going forward, but after a brief rest, the 65-year-old went right back to her job as secretary of State before retiring in late January of this year.

But since her retirement, Clinton took only about two months off, reemerging this week at two public speeches in Washington and New York. She's also signed a book deal and will hit the paid speaking circuit this month as well.

Clinton is considered a likely Democratic contender in 2016, and a number of recent polls have shown her to be the frontrunner in the Democratic field.