Constitution
- Article I, Section 4, Clause 1The Times, Places and Manner of holding Elections for Senators and Representatives, shall be prescribed in each State by the Legislature thereof; but the Congress may at any time by Law make or alter such Regulations, except as to the Places of chusing Senators.
State Laws regulating elections
- State Voting Bills Tracker 2021From the Brennan Center
- National Conference of State Legislatures: Elections and CampaignsIncludes information on voter registration, provisional ballots, absentee and early voting, voter identification, security ... and other key election legislation.