Trader consensus on Polymarket prices JD Vance at 17.6% and Gavin Newsom at 16.6% as early frontrunners for the 2028 presidential election, reflecting their strong positioning as sitting vice president and California governor amid fragmented fields in both parties. No major developments have emerged in the past 30 days to shift odds, leaving the race tight due to high uncertainty this far out—over two years before primaries—with probabilities spread across dozens of candidates based on name recognition, party insider support, and perceived paths to victory through swing states. Vance draws from Republican base loyalty and potential Trump endorsement, while Newsom leverages Democratic fundraising networks in an open primary post-2024. Key catalysts ahead include 2026 midterm results, which could signal party momentum via House and Senate control; early polling averages; high-profile endorsements; or scandals that consolidate or erode support. Term limits bar Donald Trump's eligibility, capping his odds at 2.4%.