Which party was established to limit the rights of immigrants?

The Know Nothing Party, officially known as the American Party, was established in the 1850s primarily to limit the rights of immigrants, particularlyCatholics and Irish immigrants. The party emerged in response to the growing immigrant population and aimed to promote nativism, advocating for policies that restricted Immigration and naturalization. Its members often responded to inquiries about their activities with "I know nothing," which led to the party's nickname.