The National Constitution: Article

SECTION 3. No person shall be a Senator or Representative in Congress, or Elector of President and Vice President, or hold any office, civil or military under the United States, or under any State, who, having previously taken an oath as a member of Congress, or as an officer of the United States, or as a member of any State Legislature, or as an executive or judicial officer of any State, to support the Constitution of the United States, shall have engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof. But Congress may, by a vote of two thirds of each House, remove such disability.(Under the provisions of the Amnesty Act, passed May 22, 1872, the political disabilities have been removed from all persons excepting members of the Thirty-sixth Congress, heads of departments, members of diplomatic corps, and officers of the Army and Navy engaged in rebellion.

Treatment of the public debts.

SECTION 4. The validity of the public debt of the United States, authorized by law, including debts incurred for payment of pensions and bounties, for services in suppressing insurrection or rebellion, shall not be questioned. But neither the United States, or any State, shall assume or pay any debt or obligation, incurred in aid of insurrection or rebellion against the United States, or any claim for the loss or emancipation of any slave; but all such debts, obligations and claims, shall be held illegal and void.

SECTION 5. Congress shall have power to enforce, by appropriate legislation, the provisions of this Article.

Article XV

SECTION 1. The right of the citizens of the United States to vote shall not be denied or abridged by the United States, or by any State, on account of race, color, or previous condition of servitude.

SECTION 2. The Congress shall have power to enforce this Article by appropriate legislation.