Newark Mayor Cory Booker on Monday made what could be seen as a telling slip possibly indicating that he may challenge incumbent Chris Christie for governor of New Jersey in the upcoming 2013 election.

Booker's comments came as part of an appearance on HuffPost Live, during which the mayor cited policy differences between himself and Christie. Asked if he would grade Christie's performance as governor, Booker said he would not, but pointed to some of Christie's policies with which he disagreed and which, he said, would be part of his campaign.

"When I analyze the governor's work, I don't want to give him some sort of simplistic, holistic grade," Booker told HuffPost Live. "When I go out and campaign next year for myself as a gubernatorial candidate or for another gubernatorial candidate should I decide not to run -- when I talk to crowds or to individuals advocating for whoever that candidate is, I'm not gonna do it on anything but the issues."

HuffPost Live host Marc Lamont Hill followed up on Booker's comments later in the interview, asking if Booker wanted to officially announce his candidacy for governor.

"Earlier when you you said, you know, 'next year when I run' ... I think maybe you caught yourself and said or 'if I don't choose to run,'" Hill said. "You know, this would be a great time to just get it out of the way. I know you said over the next two weeks you'll make an announcement -- but why wait? ... Why don't we get this gubernatorial announcement out of the way?"

But Booker responded by saying he has not made a decision yet about whether he will run.

"Well, you know, I appreciate that and that would make some hecka news if I made that decision, but I haven't come to a conclusion yet," Booker said, adding that he wanted to make the best career choice and that he felt "blessed" to even be considered as a potential candidate.

Speculation has swirled in recent weeks that Booker may challenge Christie for the governor's seat. Meanwhile, Christie has seen a dramatic spike in popularity following his handling of the response to Hurricane Sandy, which devastated low-lying coastal areas of New Jersey.

Booker also addressed the rumors of a possible run either for governor or the U.S. Senate during a Sunday appearance on CBS.

"I am absolutely considering running for governor, as well as giving other options some consideration. I'm going to be focused on that for the next week to ten days or so," Booker told CBS's Face The Nation.

Watch the Full Segment on HuffPost Live.

Also on HuffPost:

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  • "It's Not My Time" (3 Doors Down)

    <strong><a href="" target="_hplink">(Oct. 4, 2011) --</a></strong> Christie announced that he will not run for the Republican presidential nomination in 2012, vowing that "now is not my time." He quipped to New Jersey residents "whether you like it or not, you're stuck with me."

  • "Need You Now" (Lady Antebellum)

    <a href="" target="_hplink"><strong>LEBANON, N.H. (Oct. 11, 2011) --</strong></a> After dismissing calls to run for president himself, Christie endorsed Romney, telling the GOP that he is the candidate we need now.

  • "How Do I Live" (LeAnn Rimes)

    <strong><a href="" target="_hplink">WEST NEW YORK, N.J. (Dec. 7, 2011) --</a></strong> At a local town hall, Christie did not take kindly to a <a href="" target="_hplink">constituent's question</a> about how his administration conducts these types of meetings. He showed the individual little mercy, going "if I plant questions, why the hell did I call on you?"

  • "Can You Feel The Love Tonight" (Elton John)

    <strong><a href="" target="_hplink">(Dec. 8, 2011) --</a></strong> Occupy Wall Street protesters interrupted Christie during an appearance in Iowa, making him a target of the movement's "mic check" trend.

  • "Shut Up" (The Black Eyed Peas)

    <strong><a href="" target="_hplink">(Feb. 21, 2012) --</a></strong> In an interview with CNN's Piers Morgan, Christie had some choice words for Warren Buffett, surrounding the billionaire investor's desire to be taxed at a higher rate. "Just write a check and shut up," he remarked.

  • "American Idiot" (Green Day)

    <strong><a href="" target="_hplink">(March 9, 2012) --</a></strong> Christie argued with a former Navy SEAL over the New Jersey's plans to reconfigure public universities. The result? Some fire from the governor's tongue, as he called the veteran an "idiot."

  • "Call Me Maybe" (Carly Rae Jepsen)

    <strong><a href="" target="_hplink">(April 13, 2012) --</a></strong> Throughout Mitt Romney's run for the White House, Christie made it known that he was open to a vice presidential nod (should Romney ask him).

  • "Rocky Ground" (Bruce Springsteen)

    <strong><a href="" target="_hplink">(April 19, 2012) --</a></strong> Christie vehemently denied reports that he was sleeping at a Bruce Springsteen concert in New York City. <em><strong>

  • "I Don't Really Care" (Waka Flocka Flame)

    <a href="" target="_hplink">(April 30, 2012) --</a> Christie responded to jokes comedian Jimmy Kimmel made about his weight at the 2012 White House Correspondents Dinner, throwing Sofia Vergara into the mix. "I figured I was in the zone of danger," he said.

  • "Ready Or Not" (The Fugees)

    <strong><a href="" target="_hplink">(Aug. 14, 2012) --</a></strong> After entertaining the idea of running for president and making Mitt Romney's short list of VP candidates, Christie was named the keynote speaker at the 2012 Republican National Convention. "I'll try to tell some very direct and hard truths to people in the country about the trouble that we're in and the fact that fixing those problems is not going to be easy for any of them," he told <em>USA Today</em>.