This document provides guidance on voter targeting for political campaigns. It discusses identifying three types of voters - supporters, opponents, and undecideds - and determining which to target based on the percentages of each. The primary targets are undecided voters who are most persuadable and soft supporters of the opposing candidate. Various methods are described for identifying supporters through phone calls, door-to-door canvassing, and predictive modeling using demographics and past voting behavior. The goal is to secure one's base, target persuadable voters for persuasion efforts, and target marginal supporters for get-out-the-vote activities to reach the threshold for victory.