Why the vaccine rollout has been slower than expected in the United States. And, the political theater of counting electoral college votes. Read more:Reporters Isaac Stanley-Becker and Brittany Shammas explain why state and local health systems are struggling to roll out coronavirus vaccines, and what that means for people hoping to sign up.On Wednesday, Joe Biden will be one step closer to the presidency. Rosalind S. Helderman reports on what to expect during the congressional counting of electoral votes, and the futility of Republican lawmakers' objections. Subscribe to The Washington Post: https://postreports.com/offer