The owner of a popular online shop explains the viral success behind his "I Bought This Before We Knew Elon Was Crazy" bumper stickers.

Jeanne Vaccaro, a scholar and curator from Kansas, always wanted to become a bumper ... and leopard print jeans the day we met. She gestured to a simple, black-and-white sticker in sans-serif ...

Here in auto-saturated Los Angeles, the bumper sticker has always been a healthy form of self-expression. But in recent years, they’ve become far weirder than your average tourist-trap souvenir ...