党議

プログレッシブ和英中辞典(第4版)

とうぎ【党議】

この問題は党議にかけられる
The issue will be discussed at the party conference.／The question will be submitted to the party convention (for a decision).

党議に服する
abide by the party decision

党議拘束

party members' obligation to vote according to decisions made by the party

彼は党議拘束に逆らい除名された
He was expelled from the party 「for acting against the party decision [for refusing to observe a binding party resolution] on a vote.

出典　小学館「プログレッシブ和英中辞典(第4版)」