He became very involved in a fight in the state of Kansas, in the central part of the U.S., about whether or not the new territories, the new areas of Kansas and Nebraska, would allow slavery.

他在美国中部的堪萨斯州卷入了一场关于新领土、堪萨斯和内布拉斯加州的新地区是否允许奴隶制的斗争。