A dozen Black canvassers were tricked, threatened, and driven in seatless U-Haul vans. They were fired after WIRED reported on their plight—some without full pay or a way back home.

Elon Musk and his America PAC have run much of Donald Trump campaign’s ground game in Michigan, running the classic election strategy of door-to-door canvassers seeking votes from that huge market of people who open their homes up to strangers.