caucus

noun (plural caucuses)

• 1(in North America and New Zealand) a meeting of the members of a legislative body who are members of a particular political party, to select candidates or decide policy: the Democrats held caucuses on 10 February
• the members of a caucus: he could no longer count on the support of a majority of the parliamentary caucus

• 2a group of people with shared concerns within a political party or larger organization: he has been driven into Euro-scepticism by the right-wing caucus in the cabinet

verb (caucuses, caucusing, caucused)

• hold or form a caucus: Democrats caucus statewide on Sunday