Their free labor outlook, which resonated so effectively with deeply held northern values, helps to explain the Republicans’ rapid rise to prominence. But dramatic events in 1855 and 1856 also fueled the party’s growth. When Kansas held elections in 1854 and 1855, hundreds of proslavery Missourians crossed the border to cast fraudulent ballots. President Franklin Pierce recognized the legitimacy of the resulting proslavery legislature and replaced the territorial governor, Andrew H. Reeder of Pennsylvania, when he dissented. Settlers from free states soon established a rival government, and a sporadic civil war broke out in Kansas in which some 200 persons eventually lost their lives. In one incident, in May 1856, a proslavery mob attacked the free-soil stronghold of Lawrence, burning public buildings and pillaging private homes.
“Bleeding Kansas” seemed to discredit Douglas’s policy of leaving the decision on slavery up to the local population, thus aiding the Republicans. The party also drew strength from an unprecedented incident in the halls of Congress.
South Carolina representative Preston Brooks, wielding a gold-tipped cane, beat the antislavery senator Charles Sumner of Massachusetts unconscious after Simmer delivered a denunciation of “The Crime against Kansas.” Many southerners applauded Brooks, sending him canes emblazoned with the words “Hit him again!”
A contemporary print denounces South Carolina congressman Preston S. Brooks’s assault on Massachusetts senator Charles Sumner in May 1856. The attack on the floor of the Senate was in retaliation for Sumner’s speech accusing Senator Andrew P. Butler (Brooks’s distant cousin) of having taken “the harlot slavery” as his mistress.
Liberty, the Fair Maid of Kansas, in the Hands of the “Border Ruffians,” a cartoon blaming the Democratic Party for violence in Kansas in 1856. Leading Democrats surround the maid of liberty—from left to right, Secretary of State William L. Marcy, Democratic presidential candidate James Buchanan, President Franklin Pierce, Lewis Cass, the party’s candidate for president in 1848, and Stephen A. Douglas, author of the Kansas-Nebraska Act, shown scalping an Indian.
In the election of 1856, the Republican Party chose as its candidate John C. Fremont and drafted a platform that strongly opposed the further expansion of slavery. Stung by the northern reaction to the Kansas-Nebraska Act, the Democrats nominated James Buchanan, who had been minister to Great Britain in 1854 and thus had no direct connection with that divisive measure. The Democratic platform endorsed the principle of popular sovereignty as the only viable solution to the slavery controversy. Meanwhile, the Know-Nothings presented ex-president Millard Fillmore as their candidate. Fremont outpolled Buchanan in the North, carrying eleven of sixteen free states—a remarkable achievement for an organization that had existed for only two years. But Buchanan won the entire South and the key northern states of Illinois, Indiana, and Pennsylvania, enough to ensure his victory. Fillmore carried only Maryland. But he ran well among former Whig voters in the Upper South and more conservative areas of the North, who were reluctant to join the Democrats but feared Republican victory might threaten the Union.
The 1856 election returns made starkly clear that parties had reoriented themselves along sectional lines. One major party had been destroyed, another seriously weakened, and a new one had arisen, devoted entirely to the interests of the North.