and the Attorney General certify to Congress that the State concerned is unable or unwilling to suppress an unlawful obstruction, combination, or assemblage, or rebellion against the authority of the United States described in subsection (a). (2) A certification under paragraph (1) shall include the following: (A) A description of the circumstances necessitating the invocation of the authority under this section. (B) Demonstrable evidence that the State concerned is unable or unwilling to suppress such unlawful obstruction, combination, or assemblage, or rebellion against the authority of the United States, and a legal justification for resorting to the authority under this section to so suppress. (C) A description of the mission, scope, and duration of use of members of the armed forces under this section. . 4. Interference with State and Federal Law Section 253 of title 10, United States Code, is amended to read as follows: 253. Interference with State and Federal law (a) Authority (1) 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— (A) 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