From Business Week:
Obama Gets His Attack Dog
It can’t be easy hitting the Democratic convention podium after the pair of Clintons and the attendant drama over whether they would, or wouldn’t, be effusive enough in their backing for Barack Obama. No one worried about that when Joe Biden’s turn came to speak. Instead, the drama surrounding the new vice presidential nominee’s speech centered on a simpler question: just how aggressively would he go on the attack against McCain?