Final answer:
The Lobbying Disclosure Act of 1995 mandated registration and detailed disclosure of lobbying activities and expenditures, with certain activities being prohibited for registered lobbyists.
Step-by-step explanation:
The Lobbying Disclosure Act of 1995 was enacted to regulate lobbying activities in the United States. This act required lobbyists and interest groups to register with the federal government if they represent any interest group and devote more than 20% of their time to lobbying activities. It mandates detailed disclosures by lobbying firms and their clients of their lobbying activities, including the expenditures made, who is being lobbied, and what bills they are interested in. The act also sets forth certain prohibitions for lobbyists, which can result in penalties including prison sentences for lobbyists and lawmakers for violations.
Following this, the Honest Leadership and Open Government Act of 2007 imposed further restrictions, and President Biden's Executive Order 13989 expanded restrictions on federal employees related to lobbying. Additionally, the Bipartisan Campaign Reform Act of 2002, while not directly related to the Lobbying Disclosure Act, enhanced rules for disclosing campaign contributions and limited certain political donations and advertisements.