Who Moved My Vote?

Congressional redistricting is the process of drawing district boundaries after the census and at other times allowed by state law. Those lines can shape representation even though every valid ballot is still counted individually.

What changed in 2026

On April 29, 2026, the U.S. Supreme Court decided Louisiana v. Callais. The Court held that the Voting Rights Act did not require Louisiana to create the additional majority-minority district at issue and that the replacement map was an unconstitutional racial gerrymander.

The majority also revised how Section 2 redistricting claims should be evaluated. It said plaintiffs' illustrative maps cannot use race as a districting criterion and must satisfy a state's legitimate districting objectives, including specified political goals.

Race and party now matter in a more explicit way

The Court also said plaintiffs seeking to show racial-bloc voting must provide analysis controlling for party affiliation, so that racial voting patterns cannot simply be explained as partisan voting patterns.

The dissent argued that the new framework weakens an important tool for addressing minority vote dilution. The majority described the changes as necessary to align Section 2 with constitutional limits on race-based government action. Those are competing legal interpretations contained in the decision itself.

What voters can watch without becoming election lawyers

Pay attention to when maps are redrawn, what criteria lawmakers say they are using, which communities are moved between districts and what courts say when maps are challenged.

Redistricting is technical, but the basic civic question is simple: which communities have been placed together for representation, and why? This article explains the rules; it does not tell readers how to vote or which political outcome to support.