Political parties around the world are adopting primaries to select leaders and legislative candidates. While a large, though inconclusive, literature has emerged in the American context to explore the consequences of primaries, little attention has been devoted to other national contexts. Exploring patterns of financial donation, this study examines whether individuals who supported a losing leadership candidate are less likely to exhibit subsequent financial commitment to the party compared to those donors whose preferred candidate won the internal election. Drawing upon a novel dataset that includes tens of thousands of donors to recent leadership elections in Canada, we demonstrate that intra-party winners (i.e. those who supported the winning leadership candidate) are more likely to be financially committed to the party in the year after the election than those who supported losers. Results suggest that open and inclusive elections, while participatory in nature, may come at a cost for political parties as losers withdraw from the party in the wake of their loss.
