Which legal constraint MOST directly limits the ability of lobbyists to influence policymakers?

The Federal Regulation of Lobbying Act of 1946, and its subsequent amendments, most directly limits the ability of lobbyists to influence policymakers. This act, often referred to as the Lobbying Disclosure Act of 1995 (LDA) and the Honest Leadership and Open Government Act of 2007 (HLOGA), establishes registration requirements, reporting obligations, and restrictions on certain activities for individuals and firms engaged in lobbying. To understand why this act is the *most* direct constraint, it’s important to define key terms. Lobbying, in this context, means communicating directly with covered executive or legislative branch officials to influence legislation, regulations, or policy decisions. A lobbyist is someone who is paid to engage in this communication. ‘Covered officials’ include members of Congress, their staff, and certain executive branch officials. The 1946 Act initially aimed to prevent brib....