What were the most important institutions in immigrant communities?

Before most people were coming in from Europe, but people started coming from many other countries then there was new immigrants coming into the us like china japan Mexico. What were the important institutions in immigrant communities? Most important institutions where houses of worship like synagogues or churche

yeet yeet yeet yeet yeet yeet yeet yeet yeet yeet yeet yeet

interest groups send representatives to state capitals and to washington, d.c. to put pressure on members of congress and other policymakers. they engage in lobbying, or the organized process of influencing legislation or policy. lobbying can take many forms. interest groups can testify in congressional hearings.