Political advertising is often directed at winning over so-called swing voters, whose votes might go either way. Suppose that two political parties—the Freedom Party and the Liberty Party—disagree on whether to build a new road. Polling shows that of 1,000 total voters, 450 are firmly for the new road and 450 are firmly against the new road. Thus, each party will try to win over a majority of the 100 remaining swing voters.