Record-breaking heat last summer, inspired-15-year-old Greta Thunberg to pack a water bottle, a book, and a snack and take a stand outside the Swedish parliament with a handmade sign "School Strike for Climate." By January 2019, school strikes were spreading across Europe and some 70,000 teens hit the streets to demand action in Brussels, where the EU Parliament meets.

Dubbed the Kochs' "Secret Bank," Freedom Partners corrals donations from millionaires and billionaires to fund the Koch political operation.