LBJ: The Early Years is told under no uncertain terms that a committee spot on the Foreign Relations Committee in the Senate would be his if he stayed for a crucial labor vote. This meeting proved important as time moves forward to 1959, when Kennedy is one of the candidates for nomination in the Presidential campaign for the Democratic Party. A visit by JFK's brother Robert Kennedy to Texas is arranged as father Joseph Kennedy, who along with his sons, wish to know if LBJ is running for President or not. Johnson refers to Robert Kennedy as a "Harvard man" in a derisive tone
Referred pain local pain (pain at the site of stimulation) is intensified the referred pain is intensified as well. Criticism of this model arises from its inability to explain why there is a delay between the onset of referred pain after local pain stimulation. Experimental evidence also shows that referred pain is often unidirectional. For example, stimulated local pain in the anterior tibial muscle causes referred pain in the ventral portion of the ankle; however referred pain moving in the opposite direction has not been shown experimentally. Lastly, the threshold for the local pain stimulation and the referred pain stimulation are different,