Bund

The provided news articles do not contain any information about an organization called "Bund". Article 1 discusses the state elections in Rhineland-Palatinate and their implications for federal politics in Germany. Article 2 focuses on the Hamburg SPD's plans for reforming the social state. Article 3 reports on Unicredit's potential interest in acquiring Commerzbank. Therefore, it is impossible to provide a summary about "Bund" based on the given context. The articles are newsworthy for their respective topics: state elections, social policy, and banking mergers, but none relate to the specified organization.