Task: Text Categorization
Input (English): This politician's early and unexpected death was partly due to his acceptance of Lincoln's request that he travel to the south and northwest to rouse Union sentiments in the face of the Civil War. Known as the "Little Giant", as chairman of the Committee on Territories in the U.S. Senate he was at the forefront of the slavery question, addressing it with his concept of "popular sovereignty", which he was able to implement in the Kansas-Nebraska Act. To address the Dred Scot decision, he developed his controversial Freeport Doctrine during his famed series of debates with Abraham Lincoln in 1858. FTP, who was this Democrat who went on to lose the 1860 presidential election
Output (English): History