The cost of running a political campaign in the U.S. has been growing steadily over the past decade. The 2020 Georgia Senate races are the most expensive yet, with $480 million being funneled into ad placement since election day. How did political campaigns get so expensive? And where is all the money going? But making this "silk" isn’t easy. Extracting enough lotus silk for one scarf can take two months, and the final product can cost 10 times as much as regular silk. So just how is it made, and what makes it so expensive?