Maybe the FDA did delay the vaccine EUA, and maybe they had a logical reason, not political, or maybe it was political. I can't tell from anything on line, I see both accusations.
EUA was known to be imminent at the election date, I'm not sure it's actual approval a few days later was influential on the election outcome. Had they approved it a few days earlier, would it have mattered politically? I'd guess not.
Poll: Democrats and independents are glad they got Covid vaccines. Most Republicans regret it. (nbcnews.com)There is a LOT of irony in this mess. I recall VP Harris before the election suggesting she thought the vaccine was probably not safe, then all that reversed once Biden was in office, and Republicans started to believe it wasn't safe, by and large. This is yet another example, in my opinion, of how technical decisions on topics often become political rather than technical. The same is true with climate change, renewable energy, nuclear power, wearing seat belts, whatever else.
Folks have opinions based on their political leanings, rather than an actual assessment based on best information available, often as not. It's easier.
While more than half of Republicans who received a Covid-19 vaccine believe it wasn’t worth it, that sentiment was shared by just 29% of independents and 5% of Democrats who say they are vaccinated. Of those who say they got a vaccine, 67% of independents and 90% of Democrats say the decision was worth it. Overall, 69% of vaccinated respondents said it was worth it.As has been the case in previous polls, Democrats and independents remain more likely to say they’ve gotten a vaccine than Republicans — 94% of Democrats, 75% of independents and 60% of Republicans. 
