Ann Carlson, a professor at UCLA Law School, discusses comments made by EPA administrator Scott Pruitt in a Bloomberg interview, where he signaled an upcoming fight between the federal government and the state of California, which has been the nationwide standard bearer for automotive emissions regulations since the Obama era. Plus, Leon Fresco, a partner a Holland and Knight, discusses a decision by the Fifth Circuit Court of Appeals to allow Texas to enforce much of its controversial sanctuary city ban, which will force all law enforcement personnel and elected officials to comply with the Trump administration's policies on illegal immigration. They speak with Bloomberg’s June Grasso.