After becoming an attorney, Browning moved to
Quincy, Illinois, where he established a practice in partnership with
Nehemiah Bushnell. During the 1832
Black Hawk War he served in the Illinois Militia. Active in politics as a
Whig, he served in the
Illinois State Senate from 1836 to 1840, and the
Illinois House of Representatives from 1842 to 1844. His military and political careers overlapped
Abraham Lincoln's; as a result of their involvement in Whig politics and their shared Kentucky backgrounds, Lincoln and Browning became lifelong friends. In 1844, Browning successfully defended five men who had been accused of the
murder of
Joseph Smith, founder of the
Latter Day Saint movement. Browning was an unsuccessful candidate for election to Congress in 1843, 1850, and 1852. In May 1856, he was a delegate to the convention in
Bloomington, Illinois which was held in opposition to the
Kansas–Nebraska Act, one of the events that led to the creation of the
Republican Party. ==National politics==