Constitutional Union Party (United States) in the context of "Third Party System"

A United States presidential election was held on November 6, 1860. The Republican Party ticket of Abraham Lincoln and Hannibal Hamlin emerged victorious.

In 1860, the United States was divided over the issue of slavery. Four major political parties nominated candidates in the 1860 presidential election. Incumbent president James Buchanan, a Democrat, did not seek re-election. The anti-slavery Republican Party nominated Abraham Lincoln, a former one-term Whig Representative from Illinois, for president. Its platform promised not to interfere with slavery in the South, but opposed extension of slavery into the territories. A group of former Whigs and Know Nothings formed the Constitutional Union Party, which sought to avoid disunion by resolving divisions over slavery with some new compromise. The 1860 Constitutional Union Convention put forward former Tennessee Senator John Bell for president. After the 1860 Democratic National Convention adjourned without agreeing on a nominee, a second convention nominated Illinois Senator Stephen A. Douglas as the Democratic presidential candidate. Douglas's support for the concept of popular sovereignty, which called for each territory's settlers to decide locally on the status of slavery, alienated many radical pro-slavery Southern Democrats. With President Buchanan's support, Southern Democrats held their own convention, nominating Vice President John C. Breckinridge of Kentucky for president.

The 1860 Constitutional Union National Convention met on May 9, 1860, in Baltimore, Maryland. It was the only national convention ever held by the Constitutional Union Party, which was organized largely by former Whig Party members from the Southern United States who opposed secession. The convention nominated former Senator John Bell of Tennessee for president and former Secretary of State Edward Everett of Massachusetts for vice president.

Bell won the presidential nomination on the second ballot of the convention, defeating Everett, Governor Sam Houston of Texas, Senator John J. Crittenden of Kentucky, former Governor William Alexander Graham of North Carolina, Associate Justice John McLean of Ohio, and several other candidates. In the 1860 presidential election, Bell and Everett finished third in the electoral vote and fourth in the popular vote.

John Bell (February 18, 1796 – September 10, 1869) was an American politician, attorney, and planter who was a candidate for President of the United States in the election of 1860.

One of Tennessee's most prominent antebellum politicians, Bell served in the House of Representatives from 1827 to 1841, and in the Senate from 1847 to 1859. He was Speaker of the House for the 23rd Congress (1834–1835), and briefly served as Secretary of War during the administration of William Henry Harrison (1841). In 1860, he ran for president as the candidate of the Constitutional Union Party, a third party which took a neutral stance on the issue of slavery. He won the electoral votes of three states by a slim margin.