 However, vote pairing is another option that can allow two insincere voters to vote sincerely without changing the runoff outcome between the two leading candidates.For example, in the United States Presidential Election, if a Democrat and Republican in the same voting district both agree to vote for third party candidates, they will achieve the same effect in the Democrat/Republican runoff and will also gain the opportunity to vote sincerely for third party candidates.Voting behavior in complex voting systems tends to develop similarly high levels of strategic complexity.