Last night's debate was relatively cordial, and free of personal attacks. Which was a surprise, really. All week we've heard that John McCain was readying to attack Barack Obama. Maybe in ads and on campaign stops, but not in the town hall format debate. What was clear, though, are the issues both candidates are using to define themselves... The economy, healthcare, and Iraq, among them. We now have less than a month before voters cast their ballots for president, and it's been an awfully long campaign. What have you heard from the candidates, either in these debates or on the trail, that really defines them for you?