Harris girds for battle with Trump over union workers and their Big Labor bosses

It was one of the most fiery moments of the Democratic National Convention. Last Monday night, Shawn Fain, president of the United Auto Workers union, strode onto the stage at the United Center, took off his blazer and revealed a red t-shirt that read "Trump is a scab."  

The crowd, filled with party faithful who were also wearing the same T-shirt, roared with approval and began chanting "Trump's a scab." Fain, an electrician who worked in an Indiana automotive parts factory, is a throwback to the more bare-knuckled archetype of labor leaders. He exalted Democratic nominee Kamala Harris as a "fighter for the working class" and skewered Trump as a "lapdog for the billionaire class."

But while Fain evoked the combative labor bosses of an earlier era, behind that vintage style was a state-of-the-art, tech-savvy campaign machine poised to capitalize on the moment. Before long, the digital foot soldiers of the Harris-Waltz team, along with the UAW, had plastered the Fain video across social media, garnering millions of views, thousands of the bright red t-shirts had been sold, and the word "scab" was trending online.