This election cycle saw the Democrats increase their House majority and gain the presidency (under Franklin Pierce). Although sectionalism remained a huge problem, the parties got a slight boost of stability due to the unity of a bitter presidential campaign. Two small third parties, the Constitutional Unionists and States' Rights parties, quickly collapsed prior to this election, while the anti-slavery Free Soil Party held onto its four seats.
Note: From statehood to 1864, California's representatives were elected at-large, with the top two vote-getters winning election from 1849 to 1858; in 1860 when California gained a seat in the House the top three vote-getters were elected.