operative

“I am not a strategist. I am not a party operative,” she said from her Capitol Hill office.

European prosecutors and U.S. officials say that sabotage was carried out by Ukrainian operatives.

I'm pretty sure that's no longer operative in American politics but I suppose it's worth a try.

Federal agents, including undercover operatives, were in the ballroom during the assassination and took no steps to intervene, the lawsuit alleges.

This silence, evoked by the title, describes the organizational omerta under which the IRA operated and the unspoken agreement between its operatives and the people they lived among.