Win by a landslide.
[Idiom] WIN BY A LANDSLIDE. - Master Idioms That Express Overwhelming Success
Win with a large margin.
To "win by a landslide" means to win with a overwhelming majority or by a wide margin. This idiom is frequently used in politics and sports to describe victories that are not just clear, but exceedingly decisive, leaving no doubt about who the winner is.
Example Sentences
He won the election by a landslide, receiving over 80% of the votes.
He won the election overwhelmingly with over 80% of the votes.
The new policy was approved by a landslide in the council.
The new policy was overwhelmingly approved by the council.
Her idea won support by a landslide at the meeting, with almost everyone agreeing.
Her idea received almost unanimous support at the meeting.