Chase moved to a country home near
Loveland, Ohio, and practiced law in
Cincinnati from 1830. He rose to prominence for his authoritative compilation of the state's statutes, which long remained the standard work on the topic. From the beginning, despite the risk to his livelihood, he defended people who had escaped
slavery and those who were tried for assisting them, notably in the
Matilda Case in 1837. He became particularly devoted to the
abolition of slavery after the death of his first wife, Katherine Jane Garniss, in 1835, shortly after their March 1834 wedding. This event was a spiritual reawakening for him. He worked initially with the
American Sunday School Union. Chase became the leader of the political reformers, as opposed to the
Garrisonian abolitionist movement. For his defense of people arrested in Ohio under the
Fugitive Slave Act of 1793, Chase was dubbed the "Attorney General for Fugitive Slaves." His argument in the case of
Jones v. Van Zandt on the constitutionality of fugitive slave laws before the
U.S. Supreme Court attracted particular attention. Chase contended that slavery was local, not national, and that it could exist only by virtue of positive state law. He argued that the
federal government was not empowered by the
Constitution to create slavery anywhere and that when an enslaved person leaves the jurisdiction of a state where slavery is legal, he ceases to be a slave; he continues to be a man and leaves behind the law that made him a slave. In this and similar cases, the court ruled against him, and the judgment against
John Van Zandt was upheld. Though elected as a
Whig to a one-year term on the Cincinnati City Council in 1840, Chase left that party the next year. For seven years, Chase was the leader of the
Liberty Party in Ohio. He helped balance its idealism with his pragmatic approach and political thought. Chase was skillful in drafting platforms and addresses, and he prepared the national Liberty platform of 1843 and the Liberty address of 1845. Building the Liberty Party was slow going. By 1848, Chase was the leader in the effort to combine the Liberty Party with the
Barnburners or Van Buren Democrats of New York to form the
Free Soil Party. Chase drafted the Free-Soil platform, and it was chiefly through his influence that
Van Buren was their nominee for president in 1848. In 1849, Chase was elected to the U.S. Senate by the Ohio legislature as a Free Soiler. Chase's goal, however, was not to establish a permanent new party organization, but to bring pressure to bear upon Northern Democrats to force them to oppose the extension of slavery. During his associations with the Liberty and Free Soil parties, Chase considered himself an "
Independent Democrat" or a "Free Democrat". and the
Kansas–Nebraska Act of 1854. After the passage of the Kansas-Nebraska legislation and the subsequent
violence in Kansas, Chase helped form the Republican Party with former
Whigs and anti-slavery members of the
American Party. The "
Appeal of the Independent Democrats in Congress to the People of the United States", written by Chase and Giddings, and published in
The New York Times on January 24, 1854, was the earliest draft of the Republican party creed. In 1855, Chase was elected the first Republican governor of Ohio. During his time in office, from 1856 to 1860, he supported improved property rights for women, changes to public education, and
prison reform, and signed the state's
personal liberty laws. With the exception of
William H. Seward, Chase was the most prominent Republican in the country and had done more to end slavery than any other Republican. However, he opposed a "
protective tariff," favored by most other Republicans, and his record of collaboration with Democrats annoyed the many Republicans who were former Whigs. At the
1860 Republican National Convention, he got 49 votes on the first ballot, but he had little support outside of Ohio.
Abraham Lincoln won the nomination, and Chase supported him. Chase was elected by the legislature as a Republican to the U.S. Senate from Ohio in 1860. However, he resigned shortly after taking his seat in order to become
Secretary of the Treasury under Lincoln. He was a participant in the February 1861
Peace Conference in Washington, a meeting of leading American politicians held in an effort to resolve the burgeoning
secession crisis and to preserve the Union on the eve of the Civil War. == Secretary of the Treasury ==