Over the last four-and-a-half years, the footprint of Elon Musk’s Texas business empire has undergone rapid expansion. It now includes SpaceX facilities and a sprawling Tesla gigafactory outside the state capital.

New Bloomberg reporting shows that undocumented workers helped to build some facilities — even as Musk ratcheted up his anti-immigration rhetoric and advocated for a border crackdown.

On today’s Big Take podcast, Bloomberg’s Julia Love investigated how undocumented workers ended up at these sites — and the conditions they encountered — and joined host Sarah Holder to share what she found. 

Read more: The Undocumented Workers Who Helped Build Elon Musk’s Texas Gigafactory