Publics are small groups of people who follow one or more particular issue very closely. They are well informed about the issue(s) and also have a very strong opinion on it/them. They tend to know more about politics

Politics

Politics is a process by which groups of people make collective decisions. The term is generally applied to the art or science of running governmental or state affairs, including behavior within civil governments, but also applies to institutions, fields, and special interest groups such as the...

 than the average person, and, therefore, exert more influence, because these people care so deeply about their cause(s) that they donate much time and money. Therefore, it is unlikely for a politician to be reelected if he or she did not please the publics while in office.

Issue publics

Issue publics are groups of people who pay attention to one particular issue. One can be part of more than one issue public.

Attentive publics

Attentive publics are groups of people who pay attention to several particular issues.