Vosgerau spells "teachable" Dr. Ulrich Vosgerau explains to the Left and CDU what the constitutional considerations for a party ban actually depend on: not on political labels like "securely right-wing extremist," but on the liberal democratic basic order. Abolish human dignity? Abolish elections? Abolish the rule of law? Vosgerau asks – and simultaneously gives a small lesson in constitutional law. (translated)