If you really want to understand underlying voter sentiments in any Presidential election season, polling is a quick and easy way to get that snapshot. However, there is a fair amount of subjectivity inherent in any poll, and variables like the person/firm conducting the polling, the timing of the poll, and similar considerations can affect the poll results. Another way of gauging voter sentiment is to analyze underlying changes in partisan voter registration, since new registrants tend to register with the party who at that point in time had that voter’s support.

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