Final answer:
The impact of the Kansas-Nebraska Act on Abraham Lincoln was that it caused him to question his belief in 'law and order' and he condemned the actions of John Brown.
Step-by-step explanation:
The impact of the Kansas-Nebraska Act on Abraham Lincoln's views on 'law and order' was that it caused him to question his belief in 'law and order' and he condemned the actions of John Brown.
The Kansas-Nebraska Act, proposed by Stephen Douglas, allowed for popular sovereignty in Kansas and Nebraska, meaning that the residents of these territories could decide whether to allow or ban slavery. This led to violent clashes between proslavery and antislavery forces in Kansas, known as 'Bleeding Kansas'.
John Brown, an abolitionist, resorted to vigilantism and carried out acts of violence against proslavery forces. Lincoln believed in 'law and order' and was shocked by Brown's actions, leading him to question his belief in 'law and order'. He condemned Brown's actions and did not support them.