How did the u. S. Government change immigration restrictions during the 1920s?

By the passage of the National Origins Act of 1924

Explanation:

The United States government changed immigration restrictions during the !920s by the passage of the National Origins Acts in 1924 which introduced an immigration quota system of 2% of each nationality represented in the 1890 census.

the answer is d. party organizers, volunteers, voters and elected officials.