i suspect the prevalence of early voting indicates that malicious actors are already preparing the ground for some divisive bullshit intended to call the election into question and cause the breakdown of the government's legitimacy in the eyes of the public- no matter which candidate wins, 50% of the country is going to be very upset this would also be an ideal opportunity for a state-level adversary to launch whatever disruptive shit they have planned (cyberattack most likely but it could take many forms, or multiple at the same time)
United States