a federal government in which they no longer had sufficient representation to protect their interests. By the late 1840s, Senator Jefferson Davis from Mississippi stated that the new Northern majority in the Congress would make the government of the United States "an engine of Northern aggrandizement" and that Northern leaders had an agenda to "promote the industry of the United States at the expense of the people of the South." After the Mexican–American War, many Northerners became alarmed by new territory now being added on the Southern side of the free-slave boundary, the slavery-in-the-territories issue heated up dramatically. After a four-year sectional conflict, the Compromise of 1850 narrowly averted civil war with a complex deal in which California was admitted as a free state, including Southern California, thus preventing a separate slave territory there, while slavery was allowed in the New Mexico and Utah territories and a stronger Fugitive Slave Act of 1850 was passed, requiring all citizens to assist in recapturing runaway slaves wherever found. Four years later, the peace bought with successive compromises finally came to an end. In the Kansas–Nebraska Act, Congress left the issue of slavery to a vote in each territory, thereby provoking a breakdown of law and order as rival groups of pro- and anti-slavery immigrants competed to populate the newly settled region. Election of 1860, secession, and Lincoln's response For many Southerners, the last straws were the raid on Harper's Ferry in 1859 by abolitionist John Brown, immediately followed by a Northern Republican victory in the presidential election of 1860. Republican Abraham Lincoln was elected president with only 40% of the popular vote and with hardly any popular support in the South. Members of the South Carolina legislature had previously sworn to secede from the Union if Lincoln was elected, and the state declared its secession on December 20, 1860. In January and February, six other cotton states of the Deep South followed suit: Mississippi, Florida, Alabama, Georgia, Louisiana, and Texas. The other eight slave states postponed a decision, but the seven formed a new government in Montgomery, Alabama, in February: the Confederate States of America. Throughout the South, Confederates seized federal arsenals and forts, without resistance, and forced the surrender of all U.S. forces in Texas. The sitting President, James Buchanan, believed he had no constitutional power to act, and in the four months between Lincoln's election and his inauguration, the South