Paul S. Boyer, et al., eds., The Enduring Vision: A History of the American People, 6th ed. (Boston, MA: Houghton Mifflin Company, 2008), 393.
Zachary Taylor benefited from the Democrat's alienation of key northern states over the tariff issue, from Democratic disunity over the Wilmot Proviso, and from his war-hero stature. He captured a majority of electoral votes in both North and South. Although failing to carry any state, the Free-Soil party ran well enough in the North to demonstrate the grass-roots popularity of opposition to slavery extension. Defections to the Free-Soilers, for example, probably cost the Whigs Ohio.