Can someone give me some political impact the Kansas Nebraska act gave?

Question

Thanks

Answer 1

Check out here:
http://en.wikipedia.org/wiki/Kansas-Nebraska_Act
http://library.thinkquest.org/CR0215469/kansas-nebraska_act.htm
http://www.historyplace.com/lincoln/kansas.htm

Long story short, it repealed the Missouri Compromise, and led to bloody battles in Kansas over the issue of slavery. John Brown, famous for his Harpers Ferry raid, began his career in Kansas.
The biggest impact was that it increased the tensions around slavery and ultimately led to secession and the Civil War.
http://www.nps.gov/hafe/historyculture/john-brown.htm

Answer 2

Parrotjohn actually gave a good answer however there is a bit more. In addition to his execellent points it also set the stage for the Dred Scott decision in 1857 which posed the question if a slave was taken into free territory are then then a freed person. According to the K-N Act territories could decide for themselves if they were to be free or slave, but the Dred Scott decision overturned the K-N Act under the powers of judicial review. This led to a key question posed by A. Lincoln in the Lincoln-Douglas debates of 1858 for the senatorial seat of Illinois. Lincoln knew that Douglas was the author of the K-N Act and the champion of popular sovereignty therefore he asked Douglas in Freeport, Illinois if the people of a territory could legally ban slavery from within their borders if they so chose. Douglas was in a bind. If he said "Yes" they could, he would anger the South and voice open disagreement with the U.S. Supreme Court (who said a territory cannot do that in the Dred Scott decision.) If however he said, "No" they can't, then he would anger the North, including the people of the state of Illinois, in which he was hoping to gain reelection to the Senate. Douglas squirmed out of this tricky dilemma when he said that, "No, the people of a territory cannot make slavery illegal, but they CAN make owning slaves 'uncomfortable' in any territory the people so opted."

This came to be known as the "Freeport Doctrine" and it cost Douglas the presidential election in 1860 when southern voters were too nervous to elect Douglas to the presidency knowing that he felt slavery could "unofficially" be banned from territories and later states.

So the political impact of the K-N Act lasted well into the Civil War, since Lincoln defeated Douglas (along with Bell and Breckinridge) in the 1860 presidential election.