Lobbying is generally associated with groups However, public relations can also provide lobbying services on behalf of an individual client. Lobbying is a professional attempt to bring about a change to a government policy. corporate policy, or public opinion that is favourable towards the organization, cause or group. During political campaigns, parties may engage public relations firms as lobbyists in order to affect public opinion Lobbying can achieve positive outcomes for society. Legislation resulting in the production of cars with lower carbon emissions is the result of extensive lobbying A front group is a lobby group that hides its purpose.