Original: As stipulated by the German constitution, the powers of the vacant office were executed by the current President of the Bundesrat, Jens BÃ hrnsen, until Christian Wulff was elected president on 30 June 2010.
Simplified: As written down in the German constitution, the powers of the vacant office were executed by the current President of the Bundesrat, Jens BÃ hrnsen, until Christian Wulff was elected president on 30 June 2010.