Cupertino, California (CNN) - Ro Khanna wants a show of hands.
"How many of you have heard of LinkedIn?"
The 37-year-old Indian-American Democrat, the darling of Silicon Valley's tech elite and a vehicle for their budding engagement with Washington, is addressing a cafeteria full of advanced placement government students at Cupertino High School. Most of them are Indian or Asian-American, the sons and daughters of the programmers and tech company employees who populate this neatly manicured California town where Apple is based.