John Kerry has racked up three more "endorsements" from Latin America. Since Mr. Kerry says that as president he will be more engaged with the region, his Latin fan club deserves some attention. The most eye-popping Kerry endorsement last week came from Tómas Borge, one of the nine commandantes of Nicaragua's famed Sandinista revolution and perhaps the most feared. ... Mr. Borge of course has reason to like Mr. Kerry. The Massachusetts senator went to Nicaragua in 1985 to meet the Soviet-backed Sandinista leadership and worked hard in the U.S. Senate against President Reagan's efforts to defend U.S. security interests...