The wide-open 2028 Democratic presidential field has kept VP nominee probabilities fragmented, with no outcome above low double digits, as traders price in uncertainty over the eventual top of the ticket and resulting balancing needs. Leading names such as Gretchen Whitmer and Alexandria Ocasio-Cortez draw support from combinations of swing-state executive experience and progressive visibility, while Elissa Slotkin, Andy Beshear, and Jon Ossoff register interest tied to Senate records and perceived battleground appeal. Other contenders trail on national profiles from prior campaigns or administration roles. Ticket-balancing factors including regional strength, ideological range, and fundraising capacity shape positioning, with consolidation behind one outcome likely to follow the presidential nominee’s selection and subsequent vetting ahead of the convention.