To eat banana pudding.
Lobbyists are paid while interest groups aren't
lobbyist
National Rifle Association
interest group
A lobbyist
Protests
lobbyist or political action committee
Private interest groups are those with personal stakes on an issue. Public interest groups are those groups that advance the concerns of the public at large.
Pressure groups are the organisations or the groups that attempt to influence government policies.
Special interest lobbyist influence congressmen by providing them information. Interest groups are specialist on the topic they are interested in and do a lot of research on that topic. Congressmen are generalist and rely on interest groups to give them information on important topics so they are more informed. Each interest group wants to inform the congressmen on their view of the data they have collected.
Today a lobbyist often writes a bill and then takes it to a congressperson that will sponsor it. They are also working and in/out congressional offices speaking with members.
Representatives.. I think. That or Senators.