Campaign strategists and the public were led to believe that Democrats were headed for a wave. Election results have told a different story, just as they did four years ago. And, the next steps for a promising coronavirus vaccine.Read more:Polls fell short again in 2020. Political reporter Michael Scherer discusses what that means for future elections.Carolyn Y. Johnson explains the next steps for Pfizer’s coronavirus vaccine, which the company finds is 90 percent effective in early data from its vaccine trial.Our colleague Lillian Cunningham’s podcast “Presidential” has a new episode, all about Joe Biden: Triumph, tragedy and the fate of the center.Subscribe to The Washington Post: https://postreports.com/offer