Live commentary: Watch the presidential debate with us at 6 p.m. PDT

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CNN’s Candy Crowley will moderate Tuesday’s presidential debate between President Obama and Republican challenger Mitt Romney. This time around, the candidates will answer questions from 80 undecided voters who’ll be in attendance at the debate site at New York’s Hofstra University. Crowley will ask the follow-up questions, whether the candidates like it or not.

According to the latest poll numbers, Obama and Romney will go into this debate neck-and-neck. But for Obama, the pressure is especially high. Not only did his lackluster performance at the first debate leave much to be desired, but since Oct. 3, Romney’s likability -- normally a weak point -- has also been climbing among voters. Will we see the impassioned Obama who inspired so much support in 2008, or will Romney crush him again? Can either of the candidates move the needle for the remaining undecided voters who’re craving substance over vision? Will Romney present a plan for the economy that actually computes? Will Obama score with the ladies, or will they continue to drift toward Romney?

Time will soon tell. We will be streaming the debate right here in this spot at 6 p.m. PDT.

Along with showing the debate, we’ll also have live commentary from luminaries of the left and right, sharing their thoughts in 140 characters or less. This week’s participants include Charlotte Allen, Jonah Goldberg, Tom Hayden, Jon Healey, Mickey Kaus, Doyle McManus, Harold Meyerson, Patt Morrison and Jim Newton.

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Follow Alexandra Le Tellier on Twitter @alexletellier