In November 2017, I participated in a panel discussion on climate change policy in Indianapolis, headlined by a then-former Environmental Protection Agency (EPA) assistant administrator named Janet McCabe. She had left EPA at the beginning of the Trump administration and taken a post as director of the Environmental Resilience Institute at Indiana University. When asked what could be done to thwart the administration in its effort to roll back environmental protections, Ms. McCabe offered some ironic assurance.