“…In accordance with the need to avoid a broad definition of negative campaigning (Richardson, ), research showed that differentiating between issue‐based and person‐based political attacks is essential to understand when a backlash effect is likely to occur. Issue‐based negative messages, that is, attacks bearing criticisms on political issues, are typically judged as fair attacks; on the contrary, person‐based negative messages, that is, attacks focused on personal characteristics of the opponent, are in contrast with social norms that prescribe fairness in interpersonal relations and are mostly evaluated as unfair play (Stevens, Sullivan, Allen, & Alger, ). In other words, attacking the opponent on personal issues is a norm‐violating behavior, whereas attacking on issue‐based topics is a norm‐consistent behavior in electoral campaigns.…”