From Conservapedia The Elections Clause in the U.S. Constitution states that:
| “ | The Times, Places and Manner of holding Elections for Senators and Representatives, shall be prescribed in each State by the Legislature thereof; but Congress may at any time make or alter such Regulations, except as to the Place of chusing Senators. | ” |
U.S. Const. Art. I, § 4, Cl. 1.