“…Since then, Cap and other scholars have continued to expand its application field. So far, political discourses have remained its main field of application, including (anti-)immigration discourse (e.g., Cap, 2017; Cervi et al, 2020), terrorism brochures (e.g., Kirke, 2015), Sino-US trade war (e.g., Chen et al, 2020), and other international conflicts (e.g., Berrocal, 2019). Political metaphors are also present in other discourses, such as the analogy between invasive species in environmental discourse and immigrants in immigration discourse (Mando and Stack, 2019).…”