PRESUMPTIVE Democratic presidential nominee Joe Biden had a personal connection with California Senator Kamala Harris that CNN says led him to choose her as his running mate – and that was Biden’s son, Beau, who died of brain cancer in 2015. Biden often refers to Beau as his soul. Harris was close to the former Delaware attorney general with whom she became friends when they fought national banks during the foreclosure crisis in the 2000s. Biden told his supporters on Tuesday that his son “had enormous respect for her and her work.” He added: “I thought a lot about that as I made this decision. There is no one’s opinion I valued more than Beau’s.”