 Krämer has been a member of the Free Democratic Party since 1969.He was also a member of the Social Democratic Party of Germany from 1974 to 1982.After a reproach by "Die Tageszeitung" accusing plagiarism in "Lexikon der Städtebeschimpfungen" (Dictionary of City Insults) published in 2002, the publishing house compensated afterwards 30 authors of the presentation places for the passages taken without identification and also reached an agreement with the hurt publishing houses Reclam, Hoffmann und Campe, and Suhrkamp Verlag.