Premise: Abraham Lincoln . In doing so , he preserved the Union , paved the way to the abolition of slavery , strengthened the federal government , and modernized the economy . 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 spoke out against the expansion of slavery.
Label: ENTAILMENT