This document discusses how lobbyists and interest groups influence public policy and politicians. It explains that lobbyists are hired by interest groups to make contacts and provide information to support their clients' positions. Lobbyists use methods like campaign contributions, gifts, and paid travel to gain access to politicians. It also describes how political action committees (PACs) are formed by interest groups and businesses to collect donations that are used to support candidates who favor their issues. The overall purpose of lobbyists and PACs is to shape public policy and opinions to benefit their interest group clients.