The Free Soil Party: Question 24 options: 1) demonstrated that antislavery sentiment had spread far beyond abolitionist ranks. 2) cost Henry Clay the presidency by siphoning off votes from him in New York. 3) was powerful enough to convince James Polk not to seek reelection. 4) strongly opposed the Wilmot Proviso but agreed to let it pass as part of a compromise. 5) nominated Zachary Taylor for president.