Short Answer 
Interest groups are organizations that advocate for specific issues and influence government policies through lobbying and research, while Political Action Committees (PACs) raise and distribute funds to support aligned political candidates. Both entities significantly impact government decision-making by shaping public opinion and funding electoral campaigns.
Step 1: Understand Interest Groups
Interest Groups are organizations formed by individuals who share common goals and objectives. Their main purpose is to advocate for specific issues and influence government policies. They often engage in activities such as:
- Lobbying government officials
- Conducting research and disseminating information
- Mobilizing members to participate in campaigns
Step 2: Learn about Political Action Committees (PACs)
Political Action Committees (PACs) are specific organizations that raise and spend money to support political candidates and parties. PACs play a crucial role in the election process by:
- Collecting contributions from members or donors
- Distributing funds to candidates who align with their interests
- Promoting their agenda through advertising and campaigning
Step 3: Recognize Their Influence on Government
Both interest groups and PACs significantly affect the government and its decision-making processes. Their influence is manifested through:
- Shaping public opinion and policy discussions
- Funding electoral campaigns of candidates who support their goals
- Lobbying to promote specific legislation or regulations