When further factionalism swept the German Communist Party, Rosenberg maintained an ultra-left wing line as part of a factional group that included Werner Scholem, Iwan Katz, and Karl Korsch. This group fell into disfavor in Moscow from June 1925, however. In electing a new Central Committee the German party was invited by ECCI "to have no fear of drawing into the work the best elements from former groups not belonging to the Left" — an effort to further undercut Rosenberg's factional group.