Anyone could, and should, have made adjustments in their investments once it was clear Biden would be President. I did, some.
Paul Pelosi has some serious wealth from investments, I'm sure he did the same. It might be useful to see all the adjustments he made, not just the news of this TSLA call purchase. You could have bought Tesla call options just about randomly over the past 2-3 years and made out like a banshee.
I don't think that trade was illegal, and I suspect it's not based on any inside info.
But is spins politically.