DOJ’s stay motion fails to demonstrate that any portion of this Court’s legal analysis is erroneous, or even that the legal issues raised in this case “represent fair ground for litigation[.]” . . . . Moreover, neither the Supreme Court nor the D.C. Circuit has ever previously held that the significance of the issues presented in a case, standing alone, is enough to warrant a stay pending appeal. To the contrary, it is well established that “[s]imply calling an issue important— primarily because it involves the relationship of the political branches—does not transform the Executive’s weak arguments into a likelihood of success or a substantial appellate issue.”