Abraham Lincoln and Stephen A. Douglas engaged in a series of debates in  1858 to win nomination/election as    
 the 1860 Democratic Party presidential candidate.    
 * United States senator from Illinois.    
 Governor of Illinois.    
 Republican Party presidential candidate.    
    
The vast new territories gained in the Mexican-American War     
 * provoked a new debate over the issue of slavery in the territories.    
 occasioned a gag rule in congress.    
 were off limits to new settlers until the issue of slavery could be resolved.    
 were explored by Lewis and Clark.    
    
The issue of slavery in the territories came to a head in 1850 when     
 * California applied for statehood.    
 Silver was discovered in Nevada.    
 Arizona applied for statehood.    
 Lewis Cass proposed the principle of popular sovereignty.    
    
The Kansas-Nebraska Act opened Indian territory to American settlers     
 * under the principle of popular sovereignty.    
 under the Wilmot Proviso.    
 if they would agree to kill all Indians on sight.    
 who were under the age of 50.    
    

The Missouri Compromise line of 1820     
 negated the Kansas-Nebraska Act.    
 was extended across the Mexican cession by the Kansas-Nebraska Act.    
 * was repealed by the Kansas-Nebraska Act.    
 was left intact by the Kansas-Nebraska Act.    
    

Stephen Douglas's action in introducing the Kansas-Nebraska bill in 1854  proved to be a/an    
 * great political miscalculation.    
 step closer to the presidency for him.    
 brilliant political move.    
 insignificant political act.    
    

The appearance of the Know-Nothing Party reflected American     
 tolerance of diversity.    
 * Nativist leanings.    
 acceptance of the market revolution.    
 political apathy.    
    
John Brown's raid shocked the South because     
 * it aroused the South's great fear of a slave rebellion.    
 it was so successful.    
 Brown was tried and hanged; he was recovering from wounds suffered in the raid.    
 so many people died in vain.    
    
The South was insulted by all of the following except:     
 northern protests against the Fugitive Slave Law    
 the rejection of the Lecompton constitution    
 northern support for John Brown's raid    
 * the Dred Scott decision    
    

The Republicans won the election of 1860 largely because     
 their platform had universal appeal.    
 of Lincoln's popularity in the South.    
 * the Democratic Party split into northern and southern wings.    
 they appealed to the "Common Man."