Analysis: Obama, Clinton begin unity campaign	http://www.chinadaily.com.cn/world/2008-06/28/content_6803735.htm
	Obama seals Democratic nomination	http://www.chinadaily.com.cn/world/2008-06/04/content_6735524.htm
	Obama wins N.C. primary, Clinton wins Indiana	http://www.chinadaily.com.cn/world/2008-05/07/content_6667791.htm
	Clinton wins Ohio	http://www.chinadaily.com.cn/world/2008-03/05/content_6510281.htm