The wide-open 2028 Democratic vice-presidential field stems from the lack of a presumptive presidential nominee, leaving traders assigning modest probabilities across a diverse set of governors, senators, House members, and public figures. Leading names such as Alexandria Ocasio-Cortez and Gretchen Whitmer reflect competing party factions, with progressives emphasizing grassroots mobilization and moderates highlighting statewide executive records in battleground areas. Other contenders like James Talarico, Andy Beshear, and Pete Buttigieg bring varying combinations of legislative experience, regional appeal, and demographic positioning that could matter in Electoral College math. Consolidation remains distant because no single candidate has secured dominant endorsements or polling momentum, and future primary outcomes or convention negotiations could rapidly shift the consensus reflected in current pricing.