Only Southern State is the most appropriate answer.
As we see it was the Southern state of South Carolina which exercised the doctrine of Nullification.The South Carolina passed the Ordinance of Nullification in November 1832 which declared the tariffs of 1828 and 1832 null and void in the state. Later in December 1833 President Jackson passed Force Bill.So Armed forces were deployed against South Carolina and was brought into Compromise.
Answer: Rush of pro slavery in anti-slavery supporters.
Explanation: the unintended consequence was a Rush of pro-slavery and anti-slavery supporters to kansas to vote for slavery or its reapel.
