In 1846, many immigrants came to the united states from ireland because potato blight destroyed the potato crop and people were starving

I'm going to assume you are asking how many, and Between 1845 and 1855 more than 1.5 million adults and children left Ireland to seek refuge in America.

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.