Original: The SPD had mounted a huge comeback, and the CDU\/CSU was narrowly defeated (though both the SPD and CDU\/CSU had 38.5% of the vote, the SPD was ahead by a small 6,000 vote margin).
Simplified: The SPD had a huge comeback and the CDU\/CSU got less votes. Both the SPD and CDU\/CSU had 38.5% of the vote, but the SPD was ahead by 6,000 votes.