I don’t think it was Trump supporters thinking it would benefit Trump, because remember- they were reluctant to take it regardless of Trump pushing it…And furthermore, they were voting for Trump regardless…
I think it was more likely Biden supporters thought it would benefit Biden if there was an effort to make it look like Trump was ineffective at producing the vaccines, and that Biden was the one competent enough to get them out (And this would seem to make more sense because more people on the Left were likely to be interested in taking the vaccine- so the thinking was that it would deter Lefties from being persuaded to vote for Trump)…
But like I said before, politics like this has always happened on both sides…I’m sure Trump did similar things when he was president too- just like every other president before him…it’s nothing to get defensive about…but denying it is simply being disingenuous Imo…👍