My headcanon about US presidential election is that had a emergency election in 2018 after Blip, causing the change of election cycle. Until we have a official answer, this my headcanon.
I think DD: BA's prologue is before Werewolf By Night, since Werewolf By Night occurs in October 31-November 1, 2025, I think a week before, between October 19-25, 2025.