For the most part, this was the smoothest night of the DNC so far. Lots of policy meat and potatoes about immigration, climate change and gun violence. And importantly, it seemed like the goal was to not only knock Trump, but also to build up Biden's candidacy. Polls show a sizable majority of Biden voters say they're backing him because they don't like Trump, not because they're voting for Biden. So understandably, the Biden campaign probably would like to get more voters enthusiastic about his candidacy and not just about voting against Trump.