caucus

v. hold a party meeting, meet in a caucus

n. meeting where party leaders are elected and strategy is determined

A caucus is most generally defined as being a meeting of supporters or members of a political party or movement. The exact definition varies between many different countries.
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Noun
1. a closed political meeting
(hypernym) meeting
Verb
1. meet to select a candidate or promote a policy
(hypernym) meet, gather, assemble, forgather, foregather

n. caucus, meeting where party leaders are elected and strategy is determined

(v. i.)
To hold, or meet in, a caucus or caucuses.
  

(n.)
A meeting, especially a preliminary meeting, of persons belonging to a party, to nominate candidates for public office, or to select delegates to a nominating convention, or to confer regarding measures of party policy; a political primary meeting.