After the 23 May announcement that federal elections will be advanced to September 2005 , Wulff announced that he was not a candidate for the CDU nomination for Chancellor . He has not completed his first term as Premier of Lower Saxony . After the 23 May announcement that federal elections will be advanced to September 2005 , Wulff announced that he was not a candidate for the Christian Democrat nomination for Chancellor , particularly as he has not completed his first term as Prime Minister of Lower Saxony .