Premise: Abraham Lincoln ( [ ˈeɪbrəhæm_ˈlIŋkən ] February 12 , 1809 -- April 15 , 1865 ) was an American politician and lawyer who served as the 16th President of the United States from March 1861 until his assassination in April 1865 . In 1858 , while taking part in a series of highly publicized debates with his opponent and rival , Democrat Stephen A. Douglas , Lincoln spoke out against the expansion of slavery , but lost the U.S. Senate race to Douglas .
Hypothesis: Abraham Lincoln was a senator.
Label: NEUTRAL