Biden goes after Palin
Several democratic stragetists predicted that Biden would not mention Palin at all, that he would go directly after Bush. How long did it take for Biden to declare something that Palin said untrue? Around 7 minutes.
Taxes is another common thread in this debate. Palin and Biden have both been attacking their opponents tax plans, with Palin saying that Obama will raise taxes on small businesses that make over $250,000 a year, whereas Biden has emphasized Obama's tax credits and goes after McCain's plan to tax people's insurance benefits.