whole party; party as a whole
Refers to an entire political party acting or being considered collectively, often used in phrases like 挙党一致 (party unity) or 挙党体制 (all-party system).
We should tackle this bill with the whole party united.
We will face the next election with an all-party system.
The party announced its policy to tackle the next election as a unified whole.
挙党 refers to an entire political party acting together, whereas 挙国 uses the same 挙〜 pattern to mean the entire nation, so the two are easily confused despite differing in scope.
Compound of 挙 (raise, all) and 党 (party), literally 'raising the whole party' or 'the entire party'.