Heralded in 1970 as the nation’s environmental Magna Carta, the National Environmental Policy Act’s (NEPA’s) luster seems faded and its future uncertain. While Trump Administration initiatives threaten to diminish further and perhaps even dismantle aspects of NEPA, this Article chronicles how the current assault merely continues NEPA’s unfortunate trajectory, examining how the courts, the U.S. Congress, and the executive branch each have whittled away at the Act. NEPA consequently sits at a critical juncture: it could soon fade away or it could hew back toward its original promise.