The phrase "is influential" can be replaced by a variety of synonyms that convey a similar meaning. Examples include "holds sway," "has an impact," "exerts power," "wields authority," "commands respect," "carries weight," "shapes opinions," "directs outcomes," "sets trends," and "leads the way." These synonyms all suggest that something or someone has a significant effect in a particular area or context and is recognized as having a strong presence or voice. Using these alternative expressions can provide variety and nuance in communication, and help to avoid overuse of a single phrase.