Republicans and Democrats Wage Unprecedented Mid‑Decade Redistricting Battles Ahead of Midterms

Republican lawmakers, backed publicly by President Donald Trump, have embarked on an unprecedented effort to redraw state congressional maps in the months before the midterm elections, a strategy intended to safeguard the party’s slim majority in the House of Representatives. Democrats have responded with their own mapmaking and legal challenges, producing a nationwide series of disputes that are likely to shape the 2024 midterm landscape and could determine which party controls Congress.

The new wave of redistricting has already produced mixed results for both parties. In Virginia, the state Supreme Court cleared the way for voters to consider a Democratic-drawn congressional map, scheduling the vote for April 21. If approved, the map would target four of the state’s five Republican House members, potentially reshaping the delegation from a state that has been politically competitive in recent cycles.

At the same time, Republicans scored a significant win at the federal level when the US Supreme Court blocked a New York State ruling that would have required a new congressional map. That decision potentially protected the Staten Island-based seat held by GOP Rep. Nicole Malliotakis, illustrating how court intervention can immediately affect the political fortunes of individual members of Congress.

Redistricting — the process of redrawing the boundaries of congressional districts — normally occurs once every decade as states adjust to population changes reported in the decennial census. What is unusual about the current period is the scope and intensity of mid‑decade redistricting: lawmakers and political operatives are seeking to alter maps well outside the regular census cycle in order to influence near-term electoral outcomes.

The mechanics of mapmaking vary widely by state. In some places, state legislatures retain full authority to redraw districts, a process that can be completed quickly if there is sufficient political will. In other states, changing the map requires amending the state constitution or putting proposals to a direct vote of the people, a slower and more uncertain path. Over the past decade, a number of Democratic-leaning states shifted map-drawing power to independent commissions; some of those states are now grappling with efforts to reverse or contest those reforms.

Republicans currently have more opportunities to enact favorable maps because they control both legislative and executive branches in a greater number of states. That structural advantage has translated into concrete targets: six out of the nine House members targeted by Republican-enacted maps across the country are Black or Latino, raising questions about the racial implications of the new boundaries and prompting civil rights litigation in several jurisdictions.

The legal battles are likely to continue. In many states, parties and advocacy groups have filed lawsuits seeking to overturn recently enacted maps. At the same time, a closely watched case at the US Supreme Court could result in the justices striking down key provisions of the landmark Voting Rights Act, a move that legal experts say could open the door to more aggressive partisan and racial gerrymandering and imperil additional seats held by people of color.

As these fights play out in state legislatures and courtrooms, the immediate political stakes are high: the maps adopted now will determine which voters are grouped in which districts and could effectively decide control of the House. CNN is tracking newly proposed and enacted maps, and will continue to update coverage as state developments, court rulings and voter referendums reshape the mapmaking battlefield ahead of the November elections.