Final answer:
Key factors that impact the political power and influence of interest groups include access to economic resources and the political environment. Interest groups can influence public policy through lobbying, electioneering, litigation, and media influence.
Step-by-step explanation:
Interest groups have political power and influence that can be impacted by several key factors. One factor is access to economic resources, as some groups are advantaged by having more financial support. Another factor is the political environment, which plays a role in determining who gets heard. Additionally, interest groups can influence public policy through direct and indirect lobbying, electioneering, litigation, and shaping issues through the media.