Biden is not even in the same league of asshattery as Pelosi and Feinstein, despite a long career and being in the Executive twice. I’ll never forget Pelosi talking down to a high school student who asked her a question about economic equity—I don’t remember the kid’s question, but her response is seared into my brain. She got pissy and said “America is a capitalist country” like capitalism was handed down from god on high or enshrined in the Constitution. It was contemptuously delivered, to a degree as bad as I once heard Rick Santorum speak to a student who asked him about LGBTQ rights.
Feinstein was a regressive in a lot of ways, perhaps she escaped being labeled a DINO because her votes were more important than her sometimes asinine rhetoric.
The Logan Act deals with private citizens negotiating with foreign governments. Unless he fucked with Starlink at the direct request of the Russian gov't, I don't see how the Logan Act applies. EDIT: apparently he did it after speaking with Russian government officials. So never mind, Logan Act is absolutely implicated.