"Expansion of the President's power to declare martial law under revisions to the Insurrection Act, and take charge of United States National Guard troops without state governor authorization when public order has been lost and the state and its constituted authorities cannot enforce the law (amended in 2008 by H.R.4986 SEC.1068"
"Sec. 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. In any situation covered by clause (1), the State shall be considered to have denied the equal protection of the laws secured by the Constitution."
The United States shall guarantee to every State in this Union a Republican Form of Government, and shall protect each of them against Invasion; and on Application of the Legislature, or of the Executive (when the Legislature cannot be convened) against domestic Violence.
Note how the part about guaranteeing a Republican Form of government does not require application from the state legislature. If a state is blatantly engaging in vote fraud, the President can act unilaterally.
“The President, by using the militia...”
That’s a can of worms the Left really doesn’t want opened.