1) Why did Bernie Sanders do worse in 2020 than in 2016, despite having four years to prepare, near-universal name recognition, and being viewed very positively by Democratic primary voters?
2) What was Kamala Harris's plan after her "that little girl was me" confrontation with Biden in that debate, if any? The attacks on Biden on busing never made much sense, because at some point she would have had to argue that busing was good and should be brought back, which is a position that maybe 10% of the population holds, and the policy was never very popular even in the Black community.
3) Why did polls show a bigger lead for Biden than the final results? The polling miss was even bigger than in 2016, they just got the winner right. By contrast, the polls in 2018 were much closer to the mark (though still of in a few key races), and 2022 had an error in the other direction
Sanders campaign knew the only way to win was by winning a pluratiy and than a contested convention.
2. Kamala's plan from the start was to be VP. If she became the nominee the better. The "that little girl was me" actually took her campaign by surpise, they weren't expected such a reaction. Thus could not build from that. The Harris campaign was a s*** show behind the scenes and was never going to become a successful operation. So basically no plan.
3. Both the Biden and Trump campaigns knew the polls over performed for Biden. The Biden campaign knew they weren't going to win Florida from internal polls. The Biden campaign final predictions were pretty close, they were only wrong about North Carolina.
Why were the polls wrong again? I don't think any of the books go into great detail. Some things about Trump voters not picking up the phone to Democrats being more likely to stay home.
For # 3, why didn’t the Biden campaign warn downballot Dems (especially the DCCC) that the polls were over performing for Democrats and they needed to play more defense in certain seats?
