Ichirō Hatoyama
It was represented by several influential political leaders in postwar Japan, namely right-wing Socialist Inejirō Asanuma, Communist Sanzō Nosaka and, after the lifting of SCAP Douglas MacArthur's purge and his recovery from a stroke, anti-mainstream conservative Ichirō Hatoyama. Later representatives included former Tokyo governor Seiichirō Yasui, construction minister Yūji Ōtsuka, JSP chairman Ichio Asukata, education minister Kaoru Yosano and Shimin League president and DPJ co-founder Banri Kaieda.