On Tuesday, the Trump administration took a formal step towards repealing the Clean Power Plan. To anyone following Trump’s vow to end what he described as "the war on coal" -- and the ascent of his EPA administrator, Scott Pruitt -- the move shouldn’t have come as a surprise. Subscribe on YouTube: bit.ly/1BycsJW As President Trump and Pruitt take steps to repeal the Clean Power Plan, FRONTLINE tells the inside story of how this major reversal and other environmental policy rollbacks happened. In this excerpt from "War on the EPA," go inside the day Trump began rolling back the Clean Power Plan. "War on the EPA" premieres Wed. October 11th at 10 p.m. EST / 9 p.m. CST on PBS and online: to.pbs.org/2fLVRxY Twitter: twitter.com/frontlinepbs Facebook: www.facebook.com/frontline Google+: plus.google.com/+frontline/posts FRONTLINE is streaming more than 200 documentaries online, for free, here: to.pbs.org/hxRvQP FRONTLINE is made possible by PBS and CPB. Major support is provided by The John D. and Catherine T. MacArthur Foundation. Additional funding is provided by the Ford Foundation, the Park Foundation, The John and Helen Glessner Family Trust, the Heising-Simons Foundation, Wyncote Foundation, and the FRONTLINE Journalism Fund with major support from Jon and Jo Ann Hagler on behalf of the Jon L. Hagler Foundation.