The Democratic candidates are gearing up for the last week of campaigning before next week's Pennsylvania primary.
Sen. Barack Obama is doing damage-control after he referred to some rural voters as "bitter."
Still, the comment doesn't seem to have made much of an impact on the polls. The most recent numbers place him within striking distance -- only four points behind Sen. Hillary Clinton.
Clinton is more than willing to jump at the rare opportunity to highlight an Obama slip up.
"I don't think he really gets it that people are looking for a president that stands up for you. And not looks down on you," Clinton said.
Obama has admitted he chose his words poorly. On Monday, he accused Clinton of leveling criticism straight from the Republican playbook.
But on Tuesday, Obama defended his belief that voters are justifiably angry over high gas prices, the loss of manufacturing jobs and other examples of economic insecurity, yet that is no reason to give up hope.
"Just because you're mad, just because it seems like nobody is listening to ordinary Americans, that's not a reason to give up hope," Obama said. "You get mad and then you decide you're going to change it. If you're not angry about something you're going to sit back and let it happen to you. If you're only angry, you don't feel hopeful, and you won't get the energy to change it. I'm mad, but I'm also hopeful."
Meanwhile, Massachusetts Congressman Barney Frank says the candidate who is trailing after South Dakota and Montana vote on June 3 should be the one to quit, even if it's Clinton, whom he supports.
Frank says the decision should probably come sooner, if it becomes clear that one of the candidates has no practical chance of claiming the nomination.
Pennsylvania holds its primary next Tuesday and it's been said the outcome will determine whether Clinton should continue with her candidacy.
Source: The Associated Press