根据美国宪法的supremacy clause
This Constitution, and the Laws of the United States which shall be made in Pursuance thereof; and all Treaties made, or which shall be made, under the Authority of the United States, shall be the supreme Law of the Land; and the Judges in every State shall be bound thereby, any Thing in the Constitution or Laws of any State to the contrary notwithstanding.
美国联邦政府的法律法规都是美国最高法，任何州政府州议会都要支持和拥护并且遵守。其约束力已经经marbury v. madison等一系列案例得到确认，在小石城危机中的引出的案例就是Cooper v. Aaron，同样强调这一点。
而且根据各级公务员的宣誓
I solemnly swear (or affirm) that I will support the Constitution of the United States, and the Constitution of the State of XXX, and the Charter of the City of XXX, and that I will faithfully discharge the duties of the office of XXX to the best of my ability.
他们都必须要把宪法放在第一位
那么根据宪法Article 2 Section 2 Clause 1
The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States; he may require the Opinion, in writing, of the principal Officer in each of the executive Departments, upon any subject relating to the Duties of their respective Offices, and he shall have power to Grant Reprieves and Pardons for Offenses against the United States, except in Cases of Impeachment.
那么各州公务员，包括州长必须遵从美国总统三军统帅的地位，包括其统帅militia的职能。（这里并没有限定内外）
而美国联邦政府制定的law，不仅包括联邦立法机关国会制订的act，也包括联邦行政机关美国总统签署的executive order和下属各部门的regulation，还包括联邦法院根据案件采用相关法律条文和原则颁布的判决。那么州长必须服从Executive Order 10730下达的命令。
因此，所谓“需要州长授权”，与其说是一个法律程序，不如说是一个行政礼仪，因为州长从法律上而言没有说不的权利，否则就剥夺军权。这好比就是用枪指着某 人要求他答应某个条件，然后这个人“自愿”答应一样。只不过在这里“枪”是联邦法律，总统是拿枪的，州长就是“某人”，所谓的“授权”不过是这里的“自愿 ”，根本对拿枪的人没有约束力。
如果不服从的话，根据法律10 USC 333 – “Interference with State and Federal law”
The President, by using the militia or the armed forces, or both, or by any other means, shall take such measures as he considers necessary to suppress, in a State, any insurrection, domestic violence, unlawful combination, or conspiracy, if it -
(1) so hinders the execution of the laws of that State, and of the United States within the State, that any part or class of its people is deprived of a right, privilege, immunity, or protection named in the Constitution and secured by law, and the constituted authorities of that State are unable, fail, or refuse to protect that right, privilege, or immunity, or to give that protection; or
(2) opposes or obstructs the execution of the laws of the United States or impedes the course of justice under those laws.
其行为构成“妨碍司法公正”（impedes the course of justice）和“阻挠法律实施”（hinders the execution of the laws of that State），那么美国总统就有权指挥州军队（该法案说的就是这个）。
辉格先生认为政府收税是强制，因为人民其实没有say no的权利。其实总统指挥国民警卫队也一样，州长没有say no的权利。那所谓的“授权”从何而来呢？
千万不能迷信wikipedia，因为它也可以不遵从任何学术规范的。美国是一个案例法的国家，光抠文字而不顾判决恐怕根本不知道现实世界已经走到什么地方了。
