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 nor 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 he held illegal and void.
SECTION 5. The Congress shall have power to enforce by appropriate legislation the provisions of this article.
ARTICLE XV.
SECTION 1. The right of 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.
ARTICLE XVI.
The Congress shall have power to lay and collect taxes on incomes from whatever source derived, without apportionment among the several states, and without regard to any census or enumeration.
ARTICLE XVII.
The Senate of the United States shall be composed of two senators from each state, elected by the people thereof, for six years; and each senator shall have one vote. The electors in each state shall have the qualifications requisite for electors of the most numerous branch of the state legislatures.
When vacancies happen in the representation of any state in the Senate, the executive authority of such state shall issue writs of election to fill such vacancies: Provided, That the legislature of any state may empower the executive thereof to make temporary appointments until the people fill the vacancies by election as the legislature may direct.