Well, Biden did say he was a truck driver...
I was thinking that perhaps, he had a fetish of sucking on tailpipes. That would explain a lot.
I do wonder if his parents were first cousins? Scranton appears to have been quite isolated in its early years. Perhaps cousins marrying cousins for several generations in XiJinBiden’s family tree.
Biden’s mom must have been a truck driver, cuz he was born stupid