noun
party executive; party leadership; senior party members
Refers collectively to the top officials or leading members of a political party. Often used in news and political contexts.
党幹部が記者会見を開いた。
The party leadership held a press conference.
彼は党幹部の一人として政策決定に関わっている。
As one of the senior party members, he is involved in policy decisions.
幹部 means 'executive' or 'management' in general, not limited to a political party. 党幹部 specifies the party context.
Compound of 党 (とう, 'party') and 幹部 (かんぶ, 'executive staff, management'). The reading とうかんぶ follows standard on'yomi.