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"We will not sit idly by while political leaders manipulate voting maps to entrench their power and subvert our democracy," said the head of Common Cause.
As Republicans try to rig congressional maps in several states and Democrats threaten retaliatory measures, a pro-democracy watchdog on Tuesday unveiled new fairness standards underscoring that "independent redistricting commissions remain the gold standard for ending partisan gerrymandering."
Common Cause will hold an online media briefing Wednesday at noon Eastern time "to walk reporters though the six pieces of criteria the organization will use to evaluate any proposed maps."
The Washington, D.C.-based advocacy group said that "it will closely evaluate, but not automatically condemn, countermeasures" to Republican gerrymandering efforts—especially mid-decade redistricting not based on decennial censuses.
Amid the gerrymandering wars, we just launched 6 fairness criteria to hold all actors to the same principled standard: people first—not parties. Read our criteria here: www.commoncause.org/resources/po...
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— Common Cause (@commoncause.org) August 12, 2025 at 12:01 PM
Common Cause's six fairness criteria for mid-decade redistricting are:
"We will not sit idly by while political leaders manipulate voting maps to entrench their power and subvert our democracy," Common Cause president and CEO Virginia Kase Solomón said in a statement. "But neither will we call for unilateral political disarmament in the face of authoritarian tactics that undermine fair representation."
"We have established a fairness criteria that we will use to evaluate all countermeasures so we can respond to the most urgent threats to fair representation while holding all actors to the same principled standard: people—not parties—first," she added.
Common Cause's fairness criteria come amid the ongoing standoff between Republicans trying to gerrymander Texas' congressional map and Democratic lawmakers who fled the state in a bid to stymie a vote on the measure. Texas state senators on Tuesday approved the proposed map despite a walkout by most of their Democratic colleagues.
Leaders of several Democrat-controlled states, most notably California, have threatened retaliatory redistricting.
"This moment is about more than responding to a single threat—it's about building the movement for lasting reform," Kase Solomón asserted. "This is not an isolated political tactic; it is part of a broader march toward authoritarianism, dismantling people-powered democracy, and stripping away the people's ability to have a political voice and say in how they are governed."
A new Brennan Center study found that dark money groups spent almost $2 billion on the 2024 election, roughly double the total spent in 2020.
Every day brings a new story about the outsized role of private wealth in American politics. Elon Musk slashing and burning his way through federal agencies. Billionaire campaign donors like Howard Lutnick and Linda McMahon running cabinet departments. Other Trump patrons reportedly shaping policy on everything from crypto to the Middle East. Meanwhile, on the Democratic side, a small group of major donors is organizing to fund the party’s 2026 push to retake Congress.
And these are only the donors we know about.
The Supreme Court’s 2010 Citizens United decision ushered in the era of “dark money”—ballooning campaign spending by groups that do not disclose their funding sources. On Wednesday, the Brennan Center published a study by the journalist Anna Massoglia. She found that dark money groups spent almost $2 billion on the 2024 election, roughly double the total spent in 2020. And that’s the money Massoglia could identify—the real total is almost certainly higher, perhaps substantially so.
Voters are deeply unhappy about the role of money in politics, but years of inaction to address this issue have also left them understandably cynical.
The term “dark money” as we use it refers to election spending by groups that are not legally required to—and do not—disclose their donors. Most of this spending would have been illegal before Citizens United, which eviscerated many long-standing limits on campaign money and led to the creation of super PACs, political organizations that can raise and spend unlimited money on campaigns.
The justices got many things wrong in Citizens United. One of them was their assurance that all the new campaign spending they had just allowed would be transparent, allowing Americans to be fully informed about who was trying to influence their votes.
The justices seem not to have realized, however, that many of the new groups they were now permitting to spend unlimited amounts on campaigns were not subject to any disclosure rules. There have since been numerous efforts to fix this oversight and require all major campaign donors to be made public—most recently as part of the Freedom to Vote Act, which came within two votes of overcoming a Senate filibuster in 2022—but none of those bills have made it through Congress.
Meanwhile, dark money in federal elections has continued to rise—and become even harder to trace. In the years immediately after Citizens United, groups that didn’t reveal their donors tended to purchase their own campaign ads, which were at least reported to the Federal Election Commission if they ran in the weeks before the election and were therefore fairly easy to track. Even if the source of the money was opaque, we could see the spending itself.
Now, as our new analysis shows, reported campaign ads account for just a tiny fraction of dark money spending. Most of it now goes directly into the coffers of super PACs, and some of it pays for online ads and early-cycle TV and radio ads not subject to any legally required disclosure. We are able to track down some of that money due to voluntary disclosures and research using services that monitor TV advertising, but our overall tally of dark money spent in 2024 is an undercount, possibly by a large margin.
Both Republicans and Democrats benefited from significant dark money support in 2024, but the majority of traceable dark money backed Democrats. Most of those funds went toward enormous spending in the presidential race—$1 out of every $6 in dark money that we can track was funneled to Future Forward, the super PAC backing Joe Biden and then Kamala Harris. Trump’s dark money support that we know about was not as high, although it still amounted to hundreds of millions of dollars (including more than $35 million that paid for apparent “false flag” ads in swing states designed to look like they came from Harris).
Ultimately, neither party will have any incentive to curb reliance on secret spending absent a change in the law. To congressional Democrats’ credit, they included a fix in the Freedom to Vote Act. It was among the most popular provisions in the bill, enjoying broad public support among voters from both parties.
Voters are deeply unhappy about the role of money in politics, but years of inaction to address this issue have also left them understandably cynical. Regaining Americans’ trust must include concrete steps to make it easier for them to hold political leaders accountable. Providing the transparency that even Citizens United promised 15 years ago would be a good place to start.
A Brennan Center analysis found that gerrymandering in 2024 will give Republicans approximately 16 additional seats in the House of Representatives compared to fairly drawn maps.
Gerrymandering is as old as the republic. In the very first congressional election, Patrick Henry drew a map to try to keep James Madison from being elected to Congress. (That was before the word “gerrymandering” was even coined.) Today, both parties do it with gusto when they can.
And now gerrymandering may decide control of the House of Representatives.
Once, gerrymandering was an art. Phillip Burton, the legendary Democratic House member from San Francisco who served from the 1960s to the 1980s, used to draw the state’s maps on a tablecloth at a Sacramento restaurant. He proudly called one misshapen district “my contribution to modern art.” Now, however, it’s a science. Digital technology has reshaped the drawing of maps. Partisans can craft districts to quash competition in a way that lasts throughout a decade.
Gerrymandering may be as old as the republic, but so is the fight for fair maps.
Once, there was hope the courts would step in. In 2019, however, the Supreme Court ruled that federal judges were barred from policing partisan gerrymandering. And while it is still illegal to draw district lines to discriminate based on race, judges have often winked and allowed politicians to racially gerrymander so long as they shrug and say, “It’s not about race, it’s just politics.”
Rampant district rigging has blocked fair representation in many states, especially in the South. Nearly all the population growth in the United States over the past decade took place in the South and Southwest, and most of that came from communities of color—the very voters who should be represented and who are being shut out of power.
Now, we know that there are direct partisan consequences too. All the map drawing, all the lawsuits, are done for 2024. The dust has settled. And the Brennan Center’s experts have analyzed the effects of gerrymandering. Attorney Michael Li and political scientist Peter Miller have checked and rechecked the data.
Here’s what they found: Gerrymandering in 2024 will give Republicans approximately 16 additional seats in the House of Representatives compared to fairly drawn maps. That is well more than the margin of control in this Congress or in the one before it. There can be no question that this was done deliberately and with scientific precision—and comes especially at the expense of communities of color. In most of the gerrymandered states, there were hundreds or thousands of fair maps that could have been drawn.
What can be done about it?
One answer comes from Ohio. Seven times, the state supreme court there struck down unfair maps drawn by the Republicans. (The Brennan Center represented a broad coalition of Ohio voters.) Each time, partisan map drawers simply ignored the court. Then the state’s esteemed Chief Justice Maureen O’Connor, a prominent Republican, retired due to term limits. Now she leads a statewide drive for a ballot measure to create a strong, independent, citizen-led redistricting commission. This conservative stalwart teamed up with the progressive grassroots Ohio Organizing Collaborative. It’s a buddy movie for the ages.
Republicans tried to change the number of votes needed to pass a measure like this, but citizens rejected that sneaky move. Then state officials rewrote the language to say that the initiative was designed to support gerrymandering. No matter. Polls look strong, and there is a good chance that in Ohio, voters will untilt the legislature and congressional maps. Ohio would join Arizona, California, Colorado, and Michigan with their independent commissions. It is a prime exhibit of why voters should be able to overrule politicians.
There’s a national solution too. The Freedom to Vote Act would ban partisan gerrymandering in congressional redistricting. The John R. Lewis Voting Rights Advancement Act would strengthen that vital law against racially discriminatory rules. Both bills came achingly close to passing in the last Congress.
Sen. Charles Schumer (D-N.Y.), at a Brennan Center event with Democracy SENTRY in Chicago this summer, announced that Democrats would make these voting rights bills the first order of business—and that they would change the filibuster rules so they could pass. The next night, Vice President Kamala Harris pledged to sign them (the only bills mentioned by name in her convention speech).
Gerrymandering may be as old as the republic, but so is the fight for fair maps. At the constitutional convention in Philadelphia in 1787, James Madison insisted on the provision used to give Congress the power to override local politicians. It used “words of great latitude,” he explained, because “it was impossible to foresee all the abuses” that might come. “Whenever the State Legislatures had a favorite measure to carry, they would take care so to mould their regulations as to favor the candidates they wished to succeed.”
Meanwhile, voters will go to the polls to choose their representatives—but too often, the representatives will choose the voters. And the Congress that would consider reform will be one disfigured by biased rules and manipulative maps.