PayPal, the ubiquitous online payments service, has been in the news lately as much for its former employees as for its fast-growing business. From YouTube to LinkedIn, from award-winning picture “Thank You for Smoking†to path-breaking rocket company SpaceX, PayPal alumni are everywhere. As Forbes magazine recently put it, “maybe there was something in the beer.†It was just a matter of time until one of them got into politics. Enter Rod Martin. Martin is bigger than life, physically and every other way. Whether speaking to groups of 10 or 10,000, all across the nation he draws the crowd in,...