rule in favor of
rule in favor of (someone or something)
To deliver or pronounce an official or formal judgment that is to the advantage of or approving of someone or something. The court ruled in favor of the local company, siding with its complaint that the multinational corporation infringed on its copyright. The committee ruled in favor of allowing the construction to proceed.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
rule in favor of someone or somethingand rule for someone or something
[for a judge or deliberating body] to award a decision to someone or something or to render a decision favoring someone or something. The judge ruled for the defendant. The examining board ruled in favor of dismissing George.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.