This politician was nicknamed "spotty" for his "spot" resolution against the Mexican-American War. His Cooper Union speech helped this politician win 
This politician was nicknamed "spotty" for his "spot" resolution against the Mexican-American War. His Cooper Union speech helped this politician win the Republican nomination over William Seward. This man claimed "the policy of prohibiting slavery in new territory" originated with "the author of the declaration of Independence" in his Peoria Speech against the Kansas-Nebraska Act. This politician debated a man who advocated the Freeport Doctrine, and lost to that man, Stephen Douglas, in a Senate race. For 10 points, name this man who signed the Emancipation Proclamation and was President during the Civil War.
This politician was nicknamed "spotty" for his "spot" resolution against the Mexican-American War.
Abraham Lincoln