Conventional pundit wisdom seems to accept that a vigorous attack shows strength. But that's not true. Think of all the genuinely strong people you've known in your life. What sets them apart is that they stay calm when other people are attacking. McCain doesn't seem to get this, and neither do the conservatives who were insisting that McCain needed to haul out the heavy artillery tonight. Obama does.
The fact is, "strength" is what the media creatures say it is. Today, Obama is "calm" and it's "strength," four years ago Kerry was "calm" and it was weakness, and passivity, and poor campaigning, and how could anyone who wouldn't stand up for themselves stand up for the country?
It's a good thing us liberals already know everything, because we aren't very good at learning.