The Trump administration has rolled back more than 80 environmental regulations but some states are fighting back. No state has been more active in the resistance against Trump's environmental deregulations than California.

Case in point: last week, news broke that four of the world’s biggest automakers brokered a secret deal with the state to make more fuel-efficient cars in coming years, directly undermining the Trump administration. 

On this episode we talk with Jared Blumenfeld, chief of the California EPA about how and why the state stands up to Trump.