Legislative advocacy consists of engaging with legislators on either the state or federal level in an attempt to influence laws and policies. Most legislators know very little about PI related issues and the impact that they have on the lives of people like you.
A clear understanding of the legislative process is an important tool for effective advocacy at the federal level.
Nearly all state legislatures mirror the federal government in the fact that they are bicameral institutions, often including a House/Assembly and a Senate. The Representatives and Senators in the state legislature are officials that report to the capital of your state and deal with issues that are relevant in your specific state.