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Willie Dixon and Mary Gatson were sitting in the fellowship hall of a Baptist church in Lowndes County, Alabama, this week, waiting for a congressional town hall and trying to determine which voting district they now live in. Dixon thought she knew. She did not. “Create enough chaos,” she told a reporter, “and people will give up and go home.”

She was describing what has happened after Alabama rewrote its congressional map in the middle of an active election, thanks to the Supreme Court. This week, voters in four of Alabama’s seven congressional districts cast ballots in a second primary after the state voided congressional-primary votes already cast in May, including mail ballots, and ordered voters back to the polls under new district lines. The do-over will cost Alabama taxpayers an estimated $4.4 million. It is also a live demonstration of Dixon’s argument: When the rules change midstream, confusion does not merely accompany the process. It changes who participates.

In April, SCOTUS decided Louisiana v. Callais, sharply narrowing the Voting Rights Act’s capacity to protect minority voters from discriminatory maps and making Section 2 vote-dilution claims far harder to prove. Alabama’s Legislature did not wait to see how far that door would open. Less than two weeks before its May primary, with mail voting already underway, lawmakers redrew four of the state’s seven congressional districts and revived a map federal courts had already found intentionally discriminatory toward Black voters.

Lowndes County is not a random place for this to be happening. It sits along the Selma-to-Montgomery route, the ground the 1965 voting rights march crossed on its way to the Capitol. The Voting Rights Act exists because of brutal violence, known as Bloody Sunday, that happened on that road. Sixty-one........

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