What tactic is used when mentioning the support of various social groups for a political candidate?

The tactic of mentioning the support of various social groups for a political candidate is best categorized as a "Join the Bandwagon Appeal." This approach leverages the idea that if many people, particularly influential or popular groups, support a candidate, others should align themselves with that candidate as well. The underlying psychology is that people are often influenced by the choices and behaviors of others; thus, the mention of broad support can create a sense of safety in numbers, encouraging voters to feel that supporting the candidate is a wise or popular decision.

In doing so, this tactic taps into social proof, where individuals take cues from the actions and endorsements of others to guide their own beliefs and decisions. Such tactics are frequently employed in political campaigns to create momentum and generate a feeling of inevitability around a candidate's success, making potential supporters feel more comfortable in endorsing them.