The billionaire keeping TikTok on phones in the U.S.

Financier Jeff Yass made a big bet on the app and is a top donor to lawmakers who support it. John D. McKinnon and Stu Woo explore how his lobbying efforts, driven by his libertarian beliefs and financial interests, have contributed to the ongoing debate about TikTok's future in the U.S. Read by Mark Deakins.