Dean said the charges and countercharges between Clinton and Obama have gotten too personal at times. He declined to say how they have crossed the line, but he said he's made it clear privately when it has happened.
"You do not want to demoralize the base of the Democratic Party by having the Democrats attack each other," he said Thursday during the interview in his office at Democratic National Committee headquarters. "Let the media and the Republicans and the talking heads on cable television attack and carry on, fulminate at the mouth. The supporters should keep their mouths shut about this stuff on both sides because that is harmful to the potential victory of a Democrat."
Pennsylvania Democratic Senator Bob Casey will reportedly endorse Barack Obama today. The endorsement is a big get for Obama with less than a month to go before the April 22 Pennsylvania primary. The current RealClearPolitics average shows Clinton up 16 in the Keystone State.
"What must a president believe about us? About America?" the spot asks. "And, what must we believe about that president? What does he think? Where has he been? Has he walked the walk?"
The ad is title "624787" after McCain's Navy serial number.
Clinton was discussing John McCain's economic speech, made Tuesday, in which McCain called for economic experts to meet and arrive at an answer to the recent swell of home foreclosures.
Barack Obama, in his own speech on the economy today, offered his own harsh criticism of McCain. Clinton's campaign circulated the video this afternoon as both candidates sought to denounce McCain's economic platform.
"If Senator Obama has to copy policy ideas when he's a candidate on the campaign trail, how is he going to solve people's problems if he's president?" said Clinton policy director Neera Tanden in an e-mail. "When it comes to fixing the economy, we need leadership, not followership."
The attack is reminiscent of another that Clinton pushed just a few weeks ago. In a February debate, she accused Obama of copying words from Massachusetts Gov. Deval Patrick and thus running on "change you can Xerox." The line was met with boos from the audience.
Bloomberg introduced Obama at Cooper Union. Obama then opened his speech by lauding Bloomberg for his record on the economy and on education.
"At a time when Washington is divided in old ideological battles, he shows us what can be achieved when we bring people together to seek pragmatic solutions," Obama said, according to his prepared remarks.
More after the jump.