Final answer:
Individuals and groups can influence policy in the three branches of government through various means such as lobbying, advocacy, and lawsuits.
Step-by-step explanation:
In the executive branch, individuals and interest groups can influence policy through lobbying, campaign contributions, and other forms of advocacy. In the legislative branch, individuals and interest groups can influence policy by engaging in grassroots lobbying, testifying at committee hearings, and organizing advocacy campaigns. In the judicial branch, individuals and interest groups can influence policy by filing lawsuits and participating in amicus curiae briefs.
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