Topic of the Day: "This is our moment."

Are young voters getting bored of Obama?

Guy Benson thinks so.

As Obamania reached its frenzied pinnacle in March, fully 66 percent of voters 18-29 told pollsters they were "certain" to cast ballots in November. By late July, that figure dropped by a whopping 20 percentage points, with less than half of the youth vote still vowing to go to the polls this fall.

A freshly minted Zogby poll that grabbed headlines by highlighting a dramatic McCain comeback in the overall data also features a fascinating youth vote tidbit: "McCain gained 20% and Obama lost 16% among voters ages 18-29. Obama still leads that group, 49%-38%."

He blames the shift on Obama's flip-flops, wondering how much support Obama will actually draw from youth voters.

How worried should Obama be about the youth vote?