What has been the role of legislators and the courts in the proliferation of interest groups within the last century?

This is a discussion post. Please make sure is at least 2-3 paragraph

What has been the role of legislators and the courts in the proliferation of interest groups within the last century?

References

PLEASE USE at least one SCHOLARLY PEER-review REFERENCES, along with the book below, Intext citation APA FORMAT AND PLEASE MAKE SURE ONE IS FROM THIS BOOk

Roskin, M. G., Cord, R. L., Medeiros, J. A., & Jones, W. S. (2014). Political science: An introduction (13th ed.). Boston, MA: Pearson. References