
In a leaked weekend report to President Trump, Interior Secretary Ryan Zinke claimed the current boundaries of the 1.3-million-acre monument did not mesh with the Antiquities Act’s provision to designate “the smallest area compatible” with protecting cultural and historical sites.
In its 111-year history, the Antiquities Act has been used to designate over 150 monuments. At times, presidents have also used it to diminish existing monuments. But according to EarthJustice attorney Heidi McIntosh, a 1976 law made it clear that only Congress has that authority. If Trump acts on Zinke’s recommendations, McIntosh says he will “no doubt” face an onslaught of legal backlash questioning his…