Robert A. Divine, et al., The American Story, 3rd ed., vol. 1 (New York: Pearson Education, Inc., 2007), 355.
Clay's compromise plan, proposed in February 1850, took several months to get through Congress. One obstacle was President Taylor's firm resistance to the proposal; another was the difficulty of getting congressmen to vote for it in the form of a single package or "omnibus bill." Few politicians from either section were willing to go on record as supporting the key concessions to the other section. The logjam was broken in July by two crucial developments: President Taylor died and was succeeded by Millard Fillmore, who favored the compromise; and a decision was made to abandon the omnibus strategy in favor of a series of measures that could be voted on separately.