Simplify the following text for a Grade 9 native English-speaking person.
Original: The German Basic Law requests in Article 55 that the Federal President not hold another office , practice a profession or hold a membership in any corporation .
Simplified: 1 ) Although Mr. KÃ hler has been a member of the CDU the German Basic Law requests in Article 55 that the Federal President does not hold another office , practice a profession or hold a membership of any corporation .