公审蒋介石的争论就在宋美龄派出的专机、特使朝西北飞去时，由张学良派出的一架专机离开西安朝红都保安飞去。也就在十三日上午，中共中央举行常委扩大会议（也有的文献称政治局会议）。会议由中共中央总负责张闻天主持。主题是讨论处理西安事变的方针。这次会议的记录，现存 The public trial of Chiang Kai-shek’s argument was on a special plane dispatched by Soong Mei-ling. When the special envoy flew north-west, a special plane dispatched by Chang Hsueh-liang left Xi’an and flew to the red. Also on the morning of the 13th, the CPC Central Committee held an enlarged meeting of the Standing Committee (there are also some documents called the Politburo meeting). The meeting was presided over by Zhang Wentian, chief of the CPC Central Committee. The theme is to discuss ways to deal with the Xi’an Incident. The record of this meeting, existing