Does the 2022 election show how Democratic campaigns win?

Democrats did far better than expected in the 2022 midterm election, especially in swing states and districts. Do the early results provide new data on the effects of campaign messaging and careful candidates? Can Democrats overcome structural disadvantages by campaigning on popular issues? David Shor argues that campaign effects, especially from moderate popular candidates, help explain the outcome, whereas appeals to turnout and changes in electoral composition do not. The conversation also covers what can and cannot be learned with immediate data and how to use both political science and practitioner data to understand the effects of campaign strategy.