Harris rally-goers erupt as auto union chief hits Trump with profanity-laced jab

United Auto Workers President Shawn Fain delivered a fiery speech at a rally for Democratic presidential nominee Kamala Harris and slammed Republican presidential nominee Donald Trump as the crowd erupted into chants of "He's a scab!"

Fain, whose union represents more than 1 million auto workers, greeted the raucous crowd in Detroit saying the election revolves around one question: "Which side are you on?"

"This is a simple question because on one side, you got a billionaire that serves himself and his billionaire buddies," he said, to boos. "He lies, he cheats and he steals his way to the top. He's a lap dog for the billionaire class!"

After more boos, Fain praised "strong" and "intelligent" Harris.

"And I'm just going to put it bluntly — a bada-- woman!" he added, as the crowd burst into cheers.

Read also: 'Get rid of this dope': Trump lashes out at UAW chief Shawn Fain in late night meltdown

He praised Harris as a leader who takes on corporate greed — and wins — and whose campaign is about people rather than herself.

Fain applauded her selection of Minnesota Gov. Tim Walz as her running mate, calling him a "working class guy."

"Best of all, he's a proud union member," said Fain. "And he always puts the working class first."

He called the Harris-Walz ticket the "dynamic duo for democracy" and slammed the Trump-Vance ticket.

"Donald Trump is a scab!" he shouted, a reference to workers who cross picket lines. The crowd cheered again and launched into a lengthy chant of "He's a scab!"

After calling J.D. Vance a "vulture," Fain slammed Trump again for "trashing" the auto workers union and the working class.

"He comes to Michigan. He talks about, he's going to 'bring back the auto industry.' Let me tell you something," he said, with a pause, "Donald Trump doesn't know s--- about the auto industry!"

The crowd again burst into applause as Fain added, "And he doesn't give a d--- about the working class in this country!"

He later added: "Donald Trump is bought and paid for by the billionaire class!"

Watch Fain's speech below or at this link.