The European elections on June 13 , 2004 brought a staggering defeat for the Social Democrats , who polled only slightly more than 21 % , the lowest election result for the SPD in a nationwide election since the Second World War . The European elections on 13 June 2004 brought a staggering defeat for the Social Democrats , who polled only slightly more than 21 % , the lowest election result for the SPD in a nationwide election since the Second World War .