Throughout the campaign, virtually every poll showed a lack of Democratic enthusiasm for their candidates this year. In fact, while Republican turnout yesterday in Virginia and New Jersey was consistent with last year, Democratic turnout collapsed.
Looking ahead to next year's midterm elections, Democrats must energize their base if they hope to do well. There is no better way to get your voters to stay home than by failing to deliver on your agenda. That should be the biggest takeaway from last night's results for Democrats.
The proxy for the broader Democratic agenda right now is health care reform. If Democrats fail to pass health care reform, they will take an absolute beating in the polls next year and could easily lose control of the House and Senate.