Raised "politically" surely doesn't mean raised as a kid, as you claim.
Biden started his political career at Wilmington, which hasn't a tiny Latino polpulation. He has also been involved with Porto-rico during his career.
Quote: "And so I — I was sort of raised in the Puerto Rican community at home, politically. And so, we — and we came here for a long time, both for business and pleasure, since you’re part of the Third Circuit Court of Appeals and Delaware is as well. And I was chairman of the Judiciary Committee. I spent a lot of time in the northern part of the state.
A politician showing (and maybe overstating) his proximity with his audience, what a big deal! ????