The previous chapter addressed the impact various primary forms have on individual voters, or as political scientists might call them, the party in the electorate. This chapter explores these very same issues from the perspective of the party organization – the decision-makers within a party who constitute the party’s singular legal voice. It exposes not only how different the Court’s treatment has been when it is the party organization, rather than the party in the electorate, that is seeking constitutional redress, but also when it is a major party, rather than a third party. The contrast is striking.