Chris Cillizza (WaPo's The Fix), with video (01:49):
INDIANOLA, Iowa -- Sen. Barack Obama (Ill.) directly confronted the idea -- pushed by former Sen. John Edwards (N.C.) -- that he is "too nice" to bring about change in Washington, dismissing what he called "hot air" and "rhetoric."
The question is whether that anger aimed at the Bush Administration has fundamentally altered the thinking of members of the Democratic base. Do they want someone who offers a raised fist or someone who offers a handshake? The answer will be clearer by the end of Thursday night.