Which was not a major reason for the decline of federalism

The party ceased to exist at the end of the War of 1812. Numerous Federalists opposed the war because many of these men earned their living through trade. The Federalist Party collapsed, leaving the Democratic-Republican Party as the only political party in the United States until the mid-1820s.

Explanation:

there are a number of different ideologies that come into conflict with regard to immigrants and immigration to the us.