While Vice President JD Vance maintains a strong lead with 53% in the latest CPAC straw poll, Secretary of State Marco Rubio has emerged as a powerhouse contender, surging to 35% amid his high-profile handling of the Iran conflict. While Vice President JD Vance maintains a strong lead with 53% in the latest CPAC straw poll, Secretary of State Marco Rubio has emerged as a powerhouse contender, surging to 35% amid his high-profile handling of the Iran conflict.