caucus :)
caucus system
The earliest method of nominating a candidate for political office was known as a caucus or convention
primary election
An early method of nominating political candidates required meetings called caucuses. At a caucus people decided on candidates based on the difference between their negative and positive aspects. Caucuses are used today and are very important in the nomination process.
caucus
national conventions for nominating presidential candidates.
A closed-vote primary (restricted to party members)
interest groups
nominating candidates
interest groups
Whigs