Answer:
The Know-Nothing Party
Explanation:
The American Party favored by the nativists was also called by people as "The Know-Nothing Party." It started as a secret society in the 1850s and propelled as a movement against the Catholics (especially in the North) and immigration.
People who belong to the group (especially the Protestants) were fearful that the Catholic priests would take control of the voters. So, when members were asked about their party's information (since little was known about them), they would reply "I Know Nothing."
This party didn't last that long because the leaders were deemed incapable and they also had varying opinions about issues on slavery.
