I just chatted with George Lakoff, whom I got to know very well during the Dean campaign. He said that he thought the language of Michelle Obama's speech last night signaled to him that Obama has decided to go with a populist economic message. I'll have to look at the text of the speech.
The TaxProf pulled the tax policy pieces from Obama and Biden's speeches on Saturday. Biden's speech, in particular, does have a stronger "fight for the people" tilt than we've seen from Obama previously:
Obama: That's what it's going to take to win the fight for good jobs that let people live their dreams, a tax code that rewards work instead of wealth, and health care that is affordable and accessible for every American family.
Biden: We cannot afford to keep giving tax cuts after tax cuts to big corporations and the wealthiest Americans while the middle class America, middle class families are falling behind and their wages are actually shrinking. ... You can’t change America and give our workers a fighting chance when after 3 million manufacturing jobs disappear, you continue to support tax breaks for companies who ship our jobs overseas.