南北問題
The political turmoil engendered by the North–South divide split both major parties and led to the founding of new ones. The American Party (known as the Know Nothings) contained many nativists and pursued an anti-immigrant agenda. The Know Nothings did not publicly discuss party deliberations (thus, they knew nothing). They disliked Seward, and an uncertain number of Know Nothings sought the Whig nomination to legislative seats. Some made clear their stance by pledging to vote against Seward's re-election, but others did not. Although the Whigs won a majority in both houses of the state legislature, the extent of their support for Seward as a US senator was unclear. When the election was held by the legislature in February 1855, Seward won a narrow majority in each house. The opposition was scattered, and a Know Nothing party organ denounced two dozen legislators as "traitors".