party to

(a) party to (something)

Involved in something, often something clandestine. I refuse to be a party to your schemes any longer! I intend to remain party to the company's operations even after I retire.
See also: party, to
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

party to something

a participant in something; someone who is involved in something. I refuse to be a party to your dishonest plan!
See also: party, to
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in classic literature ?
The apportionment of taxes on the various descriptions of property is an act which seems to require the most exact impartiality; yet there is, perhaps, no legislative act in which greater opportunity and temptation are given to a predominant party to trample on the rules of justice.
According to the notification, only parties fulfilling the requirements under Sections 206 (selection for elective office), 209 (certification by the political party), 210 (information about the sources of funds), 215 (eligibility of party to obtain election symbol), and 216 (application for allocation of symbol) of the Elections Act 2017 will be allotted an election symbol.
Section 216 asks each political party to file an application to the Commission for allocation of a symbol of its choice within the period specified by the Commission in its press release, and the application must contain:
Ahn must hold a party convention possibly within this month, for the party to finalize the merger.
Many other members of the Salafi Al-Nour Party have left the party to form the newly founded Al-Watan.
ySTANBUL (CyHAN)- An invitation for a merger from the ruling Justice and Development Party (AK Party) last week to the Voice of the People Party (HAS Party) has prompted many to think about the reasons which might have motivated the AK Party to make such a move.
The unpopularity of Federalist President John Adams's policies eventually caused the party to break up.
For another thing, parties that issue subpoenas should be aware that courts are much more willing to shift the costs of production from the responding party to the requesting party in cases where the requesting party has not sufficiently protected the producing party from "undue burden or expense." And despite expanding the scope of Rule 45 to encompass electronically stored information, the amended rules now provide nonparties two chances to argue in appropriate cases that those burdens are undue.
Such "red flags" include: requests by the third party to be paid in an offshore account; inability to determine actual owners of the company; personal, business, or family relationship with a foreign official; requests for compensation exceeding the "going rate"; and objection by the third party to FCPA representations in the agreement.
Despite the noise and raucous behavior, these developments remind us once again that the best of social programs we now enjoy were passed by minority governments that had to depend on a smaller party to stay in power.
The party also shook off the attempts by the Communist Party to penetrate it.
At a time when the party enjoys sweeping power, observers wonder whether its leaders can muster the willpower to distance themselves from antigay crusaders and whether gay activists can ever apply enough pressure to the party to make that happen.
(4) He proceeds to enumerate criticisms of the Party to his fellow writer, Party member, and friend, calling into question the Party theory that a Communist must be portrayed as a hero at all times, disallowing any complexity, if not contradiction, in characters.
From that point on, a third party specializing in collections can motivate a resident/responsible party to pay in ways that you cannot, because of both the perceived and real consequences of dealing with a collection agency or attorney.
In July 1948, the liberal mayor of Minneapolis, Hubert Humphrey, rose at the Democratic National Convention and urged his party to embrace the cause of civil rights for black Americans.