The 2025-2026 Redistricting War: 20 Million Americans in New Districts

A norm that had held for over 50 years just broke

Before 2025, only two states had voluntarily conducted mid-decade congressional redistricting since 1970, according to Ballotpedia. Normally, states redraw congressional districts once per decade, right after the census, specifically to reflect population changes. In 2025, at President Trump's urging, Texas broke from that norm, redrawing its congressional map mid-decade specifically to add up to five additional Republican-leaning House seats ahead of the 2026 midterms.

California responded almost immediately, framing its own mid-decade remap as a direct counter to Texas. California voters approved Proposition 50 on November 4, 2025, a ballot measure allowing a new, Democratic-leaning map (estimated to shift roughly five seats toward Democrats) to take effect, explicitly suspending the state's independent redistricting commission that had previously controlled the process.

The real scale of disruption is enormous

According to analysis from the University of Richmond Spatial Analysis Laboratory, nearly 20 million people, about 6% of the entire U.S. population, were reassigned to new congressional districts as a direct result of the Texas and California mid-decade changes alone. In Texas, 10.4 million residents, 36% of the state's population, ended up in unfamiliar districts; in California, 9.2 million residents, 23% of the state's population, did too. Only 1 of Texas's 38 districts and 8 of California's 52 districts were left completely untouched.

As of February 2026, six states, California, Missouri, North Carolina, Ohio, Texas, and Utah, had enacted new mid-decade congressional maps, with several more reportedly considering the same move, suggesting the pattern Texas started is actively spreading rather than remaining contained to the initial two states.

The courts have mostly let this proceed, with real legal fights ongoing

• A three-judge federal panel initially ruled Texas could not use its new map, finding it a likely racial gerrymander, before the Supreme Court stayed that ruling and allowed the map to be used for 2026 while litigation continues
• The Supreme Court separately declined to block California's new map from taking effect, issuing no dissents or explanation in that decision
• Both the Texas and California maps face ongoing lawsuits alleging illegal racial gerrymandering, not just partisan gerrymandering, since racial gerrymandering claims face a different, often stronger legal standard than purely partisan ones
• A 2006 Supreme Court case, LULAC v. Perry, had already established that the Constitution does not categorically prohibit mid-decade redistricting for partisan purposes, a precedent both parties are now actively relying on

Voters, across party lines, don't actually like this

Despite the tit-for-tat partisan nature of these maps, public polling suggests broad, cross-partisan disapproval of the underlying practice. A Marquette Law School poll found 73% of Democrats opposed mid-decade redistricting even though their own party pursued it in California, down only modestly from 80% opposition a few months earlier. 68% of independent voters opposed it as well. This suggests the practice is unpopular in principle across the political spectrum, even among voters whose own party benefits from a specific instance of it.

The core disagreement, and the emerging consensus

Both parties publicly frame their own redistricting moves as a necessary defensive response to the other side's actions, Texas Republicans citing a need to secure House control, California Democrats explicitly framing Prop 50 as counteracting Trump's "power grab" in Texas. Election analysts largely agree the net national effect of these dueling maps may end up close to zero, roughly canceling out, even as each individual state's shift is large. Some analysts, following the Supreme Court's decisions allowing both maps to proceed, now expect a modest net Republican advantage nationally once all pending litigation resolves, though this remains genuinely contested and could still change. The clearest point of actual consensus: nearly everyone across the political spectrum, including many partisans whose own side is doing it, agrees mid-decade redistricting as a recurring national practice is a bad long-term precedent for the country's electoral system.