 Dowding and van Hees (2008) have argued that not all forms of strategic voting are normatively problematic. They distinguish between ‘sincere’ and ‘insincere’ forms of manipulation and argue that only the latter but not the former are normatively troublesome. Sincere manipulation occurs when a voter (i) votes for a compromise alternative whose chances of winning are thereby increased and (ii) genuinely prefers that compromise alternative to the alternative that would otherwise win. For example, in the 2000 US presidential election, supporters of Ralph Nader (a third-party candidate with little chance of winning) who voted for Al Gore to increase his chances of beating George W. Bush engaged in sincere manipulation in the sense of (i) and (ii). Plurality rule is susceptible to sincere manipulation, but not vulnerable to insincere manipulation.