[BLANK-1] wаs а prо-slаvery senatоr frоm Missouri who was heavily involved in the Bleeding Kansas Affair. This senator recognized that since Kansas’s fate as a free- or slave-state rested on popular sovereignty, that the south needed to send 10,000s of settlers to the territory in order to influence the vote. He also endorsed terroristic actions against free-state strongholds in Kansas, such as Topeka and Lawrence, in order to drive free-state supporters (and potential voters) out of Kansas Territory.