The polling pad would be considered the “landing zone”. From there both lateral attacks (others systems with the same level of access) and vertical attacks (gaining more access up to and possibly including “root”).
By stating that they are “all the way in” they are indicating that all sub systems have been compromised. Lateral, vertical and even archive / logging. That in turn means that they can go anywhere in the system, change any value, and even change the logs that recorded the change.
They should change the votes in favor of Trump. Watch the dumbocrats squeal like pigs then!