Explain the benefits that interest groups to our political system

They provide a channel in which people can communicate directly to their congressmen / back them to pass legislation on your behalf.

Also referred to as advocacy groups, lobby groups, pressure groups, campaign groups or special interest groups, there is a lot of questions surrounding interest groups. Generally, they use different forms of advocacy, where they could influence the public opinion or policies and play a significant role in developing both political and social systems. Also, they diverge in influences, motives and sizes, where some of them come with wide-ranging terms in their social purposes, while others usually focus on and always respond to the issues that are experienced by many people.