Trader consensus positions Robert F. Kennedy Jr. as the frontrunner for the 2028 Republican presidential nomination at 49 percent, ahead of J.D. Vance at 31.4 percent and Marco Rubio at 19.2 percent. This reflects the open contest created by presidential term limits, with Kennedy's crossover appeal from independent and former Democratic voters, combined with his alignment on key policy priorities, shaping early assessments of primary viability. Vance draws support from his vice presidential role and party infrastructure, while Rubio and Ron DeSantis register as established alternatives with Senate and gubernatorial records. Primary and caucus scheduling in 2028 remains the key resolution timeline, and current pricing incorporates trader evaluations of coalition-building potential among swing-state and base voters.