rule on (something)
To deliver or pronounce an official or formal judgment or decision regarding. The defendant asked for more time to provide additional evidence before the judge ruled on his case. The committee is expected to rule on the controversial issue in the next week or so.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
rule on something
to give a decision or judgment about something. How long will it be before the court rules on your petition? The boss will rule on your request tomorrow
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.