A lobbyist is hired by a business, organization, or cause to persuade legislators or other governing bodies to support that business, organization, or cause. They have a particular focus on influencing changes to public policies. Lobbyists may work for a consulting firm, be employed directly by the organization they represent, or operate independently. Some lobbyists have come under scrutiny for their approach to ethics. An ethical approach to lobbying must ensure that someone stands up for the common good. Lawmakers have an obligation to solicit the views of those who are not represented by powerful lobbying groups.