It is such an ordained process and from granularity to roll up, where they review what was given vs. reported... large anamolies would be significant. T
ampering is more important in local politics. Here in San Francisco... they post the voter rolls on the door, outside the polling place, and I can see who already VBM'd, then roll up and say I'm Joe Whomever on 674 Valencia St, then Mary Ross on 490 Guerrero... over and over and over. Morn, noon and night.
They are not allowed to ask for my ID, and I can contribute to swaying a Board of Supervisors in a major GDP producing city.