 Tonight, Ohio Senator J.D. Vance will accept his party's vice presidential nomination. You might be aware of Vance's roots in Appalachia thanks to his best-selling memoir, Hillbilly Elegy. Less known, though, are his roots in the worlds of Silicon Valley and venture capital. As NPR's Bobby Allen reports, Vance's close ties to tech billionaires could supercharge Trump's re-election bid.