: one who conducts activities aimed at influencing or swaying public officials and especially members of a legislative body on legislation : a person engaged in lobbying public officials
The new rule says that if you were a registered lobbyist in the past two years, you can't work for the administration on any issue you touched. After you leave government, you can't lobby the administration at all. Jacob Weisberg
Because so many lobbyists have past experience on Capitol Hill, they usually have personal ties both to members of congress and to their key staffers, who vet and prioritize the earmark requests. Ken Silverstein