How does the U.S. government regulate lobbying in order to prevent unethical behavior?

The U.S. government regulates lobbying through laws like the Lobbying Disclosure Act (LDA) of 1995, which requires lobbyists to register and disclose their activities, including the issues they are lobbying on and their financial expenditures. Additionally, the Ethics in Government Act mandates that lobbyists report their income and clients, promoting transparency. Enforcement is carried out by the Office of Congressional Ethics and the Department of Justice, which can investigate and impose penalties for violations. These regulations aim to prevent unethical behavior by ensuring accountability and transparency in the influence exerted on government officials.