Second it may well give money or time to help with an election campaign. Third, its members may threaten, as a group, to vote as a bloc. By doing this they promise to help a cooperative legislator, and threaten to harm a non-cooperative legislator. Fourth, a pressure group may speed up legislation by writing bills and helping legislators make progressive agreements. Finally, a pressure group my attempt to influence members of the executive, who have some law making input and who can partly decide the strength and effectiveness of law enforcement.
Sectional groups seek to represent the common interests of a particular section of society.
Trade unions, employers associations and professional bodies are all sectional groups. Because sectional groups are solely concerned with a particular section of society, membership is usually restricted. Since the aim is to look after the interests of all people in that section of society, sectional groups tend to aim to get as many eligible members as possible to join the group. Promotional groups endeavour to promote a particular cause, and for this reason are sometimes called cause groups. They are not self-interested in that the achievement of their objectives is not necessarily of direct professional or economic benefit to the members of the group.