Postings from Russian agents during the 2016 U.S. presidential campaign to Facebook and Twitter are an example of what type of effort?

Social media influence campaigns seek to achieve the goals of the attacker or owner of the campaign. They leverage social media using bots and groups of posters to support the ideas, concepts, or beliefs that align with the goals of the campaign. Impersonation is a type of social engineering attack where the attacker pretends to be someone else. A watering hole attack places malware or malicious code on a site or sites that are frequently visited by a targeted group. Asymmetric warfare is warfare between groups with significantly different power or capabilities.