Timothy Snyder, history professor, and author of "On Tyranny" and the "Thinking about..." Substack, talks with Rachel Maddow about the character of the anti-Trump movement and what past opposition movements tell us about how the energy of "No Kings Day" can be channeled into political productivity.

Demonstrators gathered in parks and plazas Saturday across the U.S. to protest against President Donald Trump. The “No Kings” rallies were organized in nearly 2,000 locations nationwide, including cities,