The bill shortens the time between general elections and runoff elections from nine weeks to four weeks. It also decreases the amount of time for early voting in runoffs.
The bill's impact may both expand some aspects of voting, complicate others, and even contract other forms of casting a ballot.
"The proposed changes appear to be rooted in partisan interests, not in the interests of all Georgia voters," Carter said in a statement.
"Instead of celebrating better access and more participation, their response is trying to eliminate access to voting for primarily communities of color," Abrams said.
Warnock is the first Black Democratic senator to be elected in Georgia and presides over the same church that the Rev. Dr. Martin Luther King Jr. once led.
Not all efforts, especially around voting by mail, are restrictive. Legislators in numerous states, both red and blue, are advancing bills to expand voting.