The Stanford grad is traipsing into a very different fundraising environment when he arrives in Silicon Valley this weekend. He is the intermittent faster, the Tim Ferriss podcaster, the first-generation tweeter, the startup founder, the college pal of Reid Hoffman and other Stanford graduates of the early ’90s who built the modern Internet. If any Democratic presidential candidate has tapped into the Silicon Valley zeitgeist over their careers, it is Cory Booker. And in 2019, that could be as much a political liability as it is a financial asset.