05/10/2008 05:12 am ET Updated May 25, 2011

Obama Ad Hits Clinton Over Gas Tax

Obama has released a new ad in Indiana criticizing Clinton for her gas tax holiday, and featuring his own energy plan:

CBS News' Brian Montopoli assesses the political risks/rewards of Obama's gas tax line:

Stuart Rothenberg, a nonpartisan political analyst, said "the anti-pander message" can be risky for a politician.

"Pandering is telling people what you think they probably want to hear," said Rothenberg. "Well, if they want to hear it, then it is a risk to go against it, by definition."

CBS News political consultant and Democratic strategist Joe Trippi said the gas tax issue "goes to the heart of the fight for the whole nomination."

"Obama is saying, 'I'm not going to promise you something that I view as silly,'" Trippi said. "Hillary is appealing to those who say, 'No, I don't care about that, I want my $30.'" (Obama has suggested that the gas tax suspension would only save the average American about $30.)

"My own gut is that this may actually hurt her much more than it hurts him," Trippi added. "She's going to have to hold this line now for the rest of the campaign. It's going to be pretty clear to people after a while that this is no solution to the problem - it's just aimed at making me feel better right now for my vote. And that's a problem long term because I think people question her credibility."

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