Trump administration considers mobilizing as many as 100,000 National Guard troops

[MADem]

67. There are EXTREME LIMITS to POTUS authority in that regard.

https://en.wikipedia.org/wiki/Insurrection_Act

(1) The President may employ the armed forces, including the National Guard in Federal service, to--
(A) restore public order and enforce the laws of the United States when, as a result of a natural disaster, epidemic, or other serious public health emergency, terrorist attack or incident, or other condition in any State or possession of the United States, the President determines that--
(i) domestic violence has occurred to such an extent that the constituted authorities of the State or possession are incapable of maintaining public order; and
(ii) such violence results in a condition described in paragraph (2); or
(B) suppress, in a State, any insurrection, domestic violence, unlawful combination, or conspiracy if such insurrection, violation, combination, or conspiracy results in a condition described in paragraph (2).
(2) A condition described in this paragraph is a condition that--
(A) so hinders the execution of the laws of a State or possession, as applicable, and of the United States within that State or possession, 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 or possession are unable, fail, or refuse to protect that right, privilege, or immunity, or to give that protection; or
(B) opposes or obstructs the execution of the laws of the United States or impedes the course of justice under those laws.

To proclaim a state of insurrection is a necessary prerequisite if cascading powers, such as is found in 50 U.S.C. § 212 Confiscation of property employed to aid insurrection, are to be used.