Germany's extreme right wing parties, the NPD and the DVU, may not enter joint lists of candidates for the 2006 national elections as planned. According to a report in the Monday edition of the Berliner Zeitung newspaper, a combination of joint lists of candidates from several parties or other forms of combinations are not possible. The SPD Bungestag delegate, Sebastain Edathy, had researched the legality of the plan by the NPD and DVU to join forces for the upcoming election. Based on Germany's election laws only voting lists with candidates from one and the same party are allowed to run for election. In 1990, the German constitutional court declared this procedure of allowing candidates from different parties on the same voting list as unconstitutional.