Mail voting is now allowed in 3 of 4 states — see its evolution

While many more states offer ways to vote before Election Day than in the past, the rules governing mail voting remain in flux ahead of the November midterms, just as states begin mailing out ballots.

*Includes District of Columbia.
Note: Election voting options were temporarily expanded in 2020 because of the Covid-19 pandemic. Percentages may not total 100% because of rounding.

Source: The Center for Election Innovation & Research

Graphic: Amy O'Kruk, CNN