Absolutely it is. From a historical perspective, the tactic has known many names: Psychological Warfare, Psychological Operations, Military Information Support Operations, etc. By definition, however, only 37-series (e.g. MOS 37F, MOS 37A) folks trained out at Ft. Bragg are able to conduct PsyOp.
Political groups, private sector companies, etc. certainly conduct influence operations - sometimes at the direction of former PsyOp personnel - but there are legal distinctions and differences. It's one reason I enjoy limiting how much television I watch: advertisements are just watered-down influence operations with the goal of "spend money on X".