Why the Supreme Court’s Campaign Finance Case Could Unleash Unlimited Party Spending

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In December 2025, the Supreme Court heard arguments in a case that could reshape how much money flows to candidates through political parties. At stake: whether federal limits on coordinated party spending violate free speech protections in the Constitution. A ruling against those limits would mark another major victory for those who view campaign spending as protected speech—and another setback for those worried about money’s influence on elections.

The decision, expected by summer 2026, will arrive right in the middle of campaign season for the 2026 midterms.

What makes this case unusual is that the Trump administration chose not to defend the law itself. Typically, the federal government defends federal statutes, even ones the current administration disagrees with. Here, the administration instead agreed with the Republicans challenging the limits, telling the Court that these 50-year-old restrictions on party spending violate free speech rights. The Court then had to appoint an outside attorney to defend the law that the government would not.

Coordinated Party Expenditures Explained

Imagine a Senate candidate in Ohio. Under current law, that candidate can receive a $3,500 contribution from an individual donor. The same individual can also give $44,300 per year to the national Republican Party.

But then there’s a third path for funds. The political party can spend resources supporting that candidate in coordination with the candidate’s campaign—meaning the party can communicate with the candidate, strategize together, and coordinate spending. In 2025, the national Republican Party committee can spend up to $1,184,500 in coordinated expenditures on behalf of an Ohio Senate candidate. That’s nearly 27 times what that same donor could give directly to the candidate.

This funding goes through the party, not directly to the candidate. The party pays for the campaign activities—typically television ads, mail, voter contact—in coordination with the candidate’s campaign. The candidate doesn’t receive a check. Instead, the party is paying for goods and services that benefit the candidate.

To understand the difference between coordinated and independent expenditures, consider what the party can already do without any coordination: spend unlimited sums. A political party can spend unlimited amounts to support a candidate—as long as they don’t talk to the candidate about how they’re spending it, what message to emphasize, or where to focus their efforts. That spending is unlimited, uncapped, not restricted in any way.

But the unlimited independent spending is often less useful to a candidate than coordinated spending. With independent spending, the party and candidate can’t coordinate. The candidate can’t tell the party, “We’re getting beaten in rural counties, focus your spending there.” The party can’t ask the candidate, “Which message resonates with voters in your district—healthcare or inflation?” Without coordination, it’s like two teams playing on the same field toward the same goal but never passing the ball to each other.

Coordinated spending solves that problem. The party and candidate work together to target resources strategically. That coordination makes the spending more effective, which is why parties value it more than independent spending, even though independent spending has no limits at all.

Currently, federal law caps how much parties can spend in coordination with candidates. For House races, the limits are $63,600 per candidate (or $127,200 in states with only one representative). For Senate races, they range from $127,200 in sparsely populated states to $3,946,100 in California, based on the state’s voting-age population. These amounts increase each year for inflation.

The question before the Court is straightforward: Do these coordinated party expenditure limits violate the First Amendment?

Why These Limits Exist: Following the Money

To understand why these limits exist, you need to know what Congress was trying to prevent: the wealthy laundering funds through parties to get around contribution limits.

Here’s the scheme Congress worried about: A wealthy donor wants to help a particular Senate candidate. Federal law says that donor can give $3,500 directly to that candidate and $44,300 to the national party. But what if that donor could do this: Give $500,000 to the national party with a clear understanding that the party will spend every penny of it supporting this specific candidate—passing it through the party as a conduit to the candidate? The party could then spend that $500,000 on advertisements, mail, and voter contact on behalf of that candidate, coordinating every detail with the candidate’s campaign to maximize effectiveness.

From the candidate’s perspective, this is nearly identical to a $500,000 contribution. From the donor’s perspective, they’ve effectively gotten around the $3,500 contribution limit to the candidate. The whole contribution limit becomes meaningless if funds can flow around it through the party.

Congress created coordinated party expenditure limits to prevent exactly that. Since the party can accept more than a candidate can (while still being limited), and since coordinated spending is more effective than independent spending, parties became a natural conduit for channeling large sums to specific candidates while maintaining legal limits.

The legal foundation for this emerged from a 2001 Supreme Court case (Federal Election Commission v. Colorado Republican Federal Campaign Committee). In that case, the Court upheld the coordinated party expenditure limits, reasoning that they are necessary to stop people from getting around contribution limits and to reduce explicit deals where money buys political favors.

That 2001 ruling was a 5-4 decision, with Justice Clarence Thomas writing a dissent arguing that these limits violated free speech. But the majority held that the limits could stand because they served a substantial government interest: preventing corruption or the appearance of corruption.

Then came a series of decisions that gradually chipped away at campaign finance restrictions.

In 2010, Citizens United v. Federal Election Commission overruled restrictions on corporate and union independent spending, holding that limits on independent expenditures violate the First Amendment. That decision opened the door for Super PACs—independent groups that can raise and spend unlimited amounts as long as they don’t coordinate with candidates. In 2014, McCutcheon v. Federal Election Commission struck down total limits on how much one person could give to all candidates combined.

With each decision, the justices changed what reasons they would accept for limiting campaign spending. The Court said limits could only stop direct bribes—rather than broader concerns about money’s influence on politics. The justices also became skeptical of regulations that prevent problems before they happen—regulations that prevent not corruption itself but the appearance of corruption or situations that could create corruption.

This shifting legal landscape sets the stage for the current case. The challengers argue that since the thinking about what justifies campaign finance limits has changed, the 2001 precedent upholding coordinated party expenditure limits no longer holds water.

The Current Case: What’s Being Challenged

Vice President J.D. Vance, then a senator from Ohio, joined with the National Republican Senatorial Committee and the National Republican Congressional Committee to file this lawsuit in 2022. They argue that the coordinated party expenditure limits violate the First Amendment because they prevent parties from communicating their political message—paying for campaign communications that advocate for their candidates.

The specific argument goes like this: The limits prevent parties and candidates from coordinating to deliver a unified message. When a party coordinates spending with a candidate, the party is speaking on its own behalf, not making an unlawful contribution to the candidate. Restricting that coordinated spending restricts the party’s ability to speak, which the First Amendment protects.

The challengers also argue that the theory behind the limits—preventing people from getting around contribution limits—no longer works because the thinking about contributions and corruption has changed. A donor can already give $500,000 to a Super PAC and tell that Super PAC to spend it all supporting a particular candidate (albeit without officially coordinating), so the reason for the limits no longer makes sense. Congress created these limits based on corruption concerns, and the Court has now defined corruption narrowly as only direct bribes, so the limits don’t prevent corruption—they’re restricting speech.

In May 2025, the Trump administration’s top lawyer at the Supreme Court told the justices that the government would not defend the law. Government lawyers have a longstanding policy of defending federal statutes, even ones they disagree with politically. The top lawyer explained that this case warranted an exception to that general approach because he believed the limits violated the First Amendment.

Because the government wouldn’t defend the law, the justices appointed Roman Martinez, an experienced lawyer who had previously worked for Chief Justice Roberts, to defend the law as an outside counsel. During oral arguments in December 2025, Martinez proposed an alternative path: dismiss the case without deciding who’s right, arguing that Vice President Vance’s claim was no longer a real dispute that needed deciding because he has stated he doesn’t plan to run for office in 2028, and that Trump’s executive order directing the FEC not to enforce the limits meant there was no actual dispute that needed to be resolved.

But the Court didn’t seem interested in that way to avoid making a decision. Chief Justice John Roberts particularly pressed back, asking Martinez whether, if Vance asked for legal advice on whether he could violate the limits without consequences, Martinez would tell him to go ahead. Roberts noted that even though the current administration won’t enforce the law, a future administration might, so someone could still enforce the law in the future.

The Arguments: Free Speech Versus Preventing Corruption

The case crystallizes a fundamental tension in campaign finance law: How do you prevent corruption without restricting speech? Or alternatively, how do you protect speech without enabling corruption?

The case for removing the limits rests on free speech grounds.

Noel Francisco, the former top lawyer representing the Republicans challenging the limits, argued that the coordinated party expenditure limits contradict what the Court has said recently. The justices have said the only good reason for restricting campaign spending is preventing explicit deals where money buys political favors.

The limits don’t prevent direct bribes at all. A donor can’t bribe a candidate through the party using coordinated expenditures because the party, not the donor, controls the spending. The donor doesn’t have a direct exchange arrangement with the candidate. The party decides how to spend the funds. The party decides which ads to run. The donor gives to the party—resources the party was going to raise anyway.

Francisco also argued that the limits were based on assumptions that no longer apply. Congress created them based on assumptions about campaign finance that no longer hold. Congress assumed that contribution limits were the main way candidates got funded and that party spending was a way to work around those limits. But today, Super PACs can raise and spend unlimited sums. Candidates can raise funds from all sorts of outside sources. At least 28 states allow unlimited coordinated party expenditures without seeing problems with corruption.

Finally, Francisco argued, the limits harm parties. Because parties are limited in what they can spend in coordination with candidates, while Super PACs face no limits at all, Super PACs have become more powerful than parties. This has led to parties splitting into smaller groups that disagree more because Super PACs are narrowly focused on specific candidates or issues, whereas parties have broader institutional interests in building long-term strength. Removing the limits would restore power to parties, potentially benefiting the system as a whole.

The case for keeping the limits focuses on preventing corruption and the appearance of corruption.

Marc Elias, the attorney representing the Democratic National Committee defending the limits, argued that without coordinated party expenditure limits, wealthy donors would have a new avenue to funnel large donations to specific candidates while hiding the source. A donor could give a large sum to a party with a clear understanding that the party would spend it all supporting a particular candidate. That’s basically the same as a huge direct donation to that candidate, and it gets around contribution limits.

Elias also pointed out something that the challengers seemed to gloss over: While Super PACs can spend unlimited sums, Super PACs can’t coordinate with candidates. Coordination is what makes spending useful to candidates. A candidate doesn’t care whether outside funds are spent supporting them if the candidate can’t talk to the group spending the resources about what message to emphasize or where to focus. Coordinated spending is more valuable to a candidate than independent spending, which is why parties value it more even though the limits on coordinated spending are sometimes lower than Super PACs’ spending.

Justice Elena Kagan pressed Francisco on this point during oral arguments. She noted that in McCutcheon, the Court had cited the coordinated party expenditure limits as a safety net to prevent getting around the restrictions—in other words, the Court had said these limits existed for a reason and served an important function. Now Francisco was asking them to remove that safety net. Doesn’t that undermine the reasoning in McCutcheon? If the limits are necessary to prevent getting around the restrictions in that context, how can they be unnecessary now?

Elias also argued something politically interesting: Removing the limits would hurt parties in the long run. If parties become money processors—processing funds from donors to fund campaign activities—then parties lose their independent power and ability to build durable infrastructure. Parties do more than spend on ads; they build voter registration systems, train candidates, and construct long-term organizational capacity. If party funds all funnel through coordinated spending with individual candidates, parties can’t invest in their long-term goals.

Justice Samuel Alito seemed skeptical of these concerns. He criticized concerns about problems that might happen in the future. Shouldn’t the Court focus on the specific provision in front of them rather than engaging in speculation about future problems?

The justices’ questions showed they disagreed sharply.

The three justices most skeptical of removing limits—Sotomayor, Kagan, and Jackson—seemed skeptical of removing the limits. Justice Sotomayor said flatly: “Every time we interfere with the congressional design, we make matters worse.” The three justices most sympathetic to the free speech argument—Thomas, Alito, and Kavanaugh—seemed more sympathetic to the challengers’ First Amendment argument, particularly Kavanaugh, who repeatedly expressed concern that the limits weaken parties compared to Super PACs.

The three justices whose views were unclear—Chief Justice Roberts, Justice Gorsuch, and Justice Barrett—didn’t reveal how they would vote. Roberts pressed both sides on whether coordinated expenditures are different from in-kind contributions, suggesting he might see them as functionally the same. Gorsuch asked virtually no questions. Barrett asked exactly one question, which seemed to probe whether the Democrats were defending the limits only out of wanting to help their own party—suggesting she doubted the Democrats’ argument.

What Could Change

Scenario One: Limits Are Struck Down

Parties would immediately be able to spend unlimited sums in coordination with candidates. A national party committee could spend $10 million, $50 million, $100 million—however much it wanted—working directly with a candidate’s campaign.

In practice, this would likely mean more funds flowing through party committees rather than directly to candidate committees. Donors who currently give the maximum to candidates and the maximum to parties could instead give even more to parties, with the understanding that the party would spend it all coordinating with specific candidates.

The funds themselves might not increase dramatically, at least not immediately. What would likely shift is how the money gets to candidates. Instead of a donor giving to Super PACs (which must be independent of candidates), that donor might instead give to a party (which could then coordinate directly with the candidate). For donors, coordinated party spending is more effective than independent spending because the party and candidate can work together.

For candidates, removing the limits would create new strategic choices. A candidate could lean more heavily on party support and less on Super PACs and small donors. This could be advantageous in competitive races. In 2025, Senate coordinated party spending ranges from about $127,200 in Wyoming to $3,946,100 in California. With those limits removed, parties in competitive Senate races could theoretically spend whatever they wanted, coordinated with the candidate.

Different types of candidates would likely benefit differently. Incumbent candidates would probably benefit most because the parties want to protect their incumbent members. Challengers might find it harder to compete if party funds flowed to incumbents. Candidates in less wealthy states or districts might benefit from party support, while candidates in wealthier areas where Super PACs are already heavily involved might see less additional benefit.

Parties might invest more in close races but less in races where one party is guaranteed to win. The mix of who wins and loses between parties would depend partly on which party had more resources and more effectively deployed them. The focus of elections might shift from individual candidates to the parties themselves—making parties more powerful actors in American politics.

Scenario Two: Limits Are Upheld

Upholding the limits means the current system continues. Coordinated party spending remains capped. Parties continue to work within current limits. The 2001 precedent stands, and the Court signals they won’t continue chipping away at campaign finance restrictions. This would be a rare victory for campaign finance regulation in an era of steady deregulation.

However, even a win on the limits wouldn’t mean the status quo is stable. The Court has been on a consistent trajectory of relaxing campaign finance restrictions, and a single victory wouldn’t necessarily stop that. Another case could come along challenging other limits.

Where Campaign Finance Stands Today

The federal campaign finance system was fundamentally reshaped by Court decisions, not by Congress. Congress passed the main federal law regulating campaign funding in 1971 and amended it substantially in 1974, partly in response to Watergate. Those laws created contribution limits and expenditure limits and established the Federal Election Commission to enforce the restrictions.

Then in 1976, the Court struck down limits on how much candidates could spend, ruling that limits on campaign spending restrict speech and violate the First Amendment. The Court upheld contribution limits, reasoning that they prevent corruption without directly restricting speech (since the funds can still be spent by someone other than the donor).

This created a system that lasted for decades: Contribution limits are okay, expenditure limits are not. Limits on independent spending are not allowed. But coordinated spending could be limited because it’s functionally similar to a contribution.

Then came Citizens United v. Federal Election Commission in 2010. The Court struck down limits on independent expenditures by corporations and unions. This allowed Super PACs to be created, which can raise and spend unlimited sums as long as they don’t coordinate with candidates.

Super PACs have exploded. From 2010 to 2022, Super PACs spent approximately $6.4 billion on federal elections. In the 2024 election cycle alone, Super PACs spent at least $2.7 billion. In comparison, traditional party committees raised and spent around $2.7 billion total in the 2023-2024 cycle. Super PACs spent $2.7 billion in the 2024 cycle alone while party committees spent $2.7 billion over the full 2023-2024 cycle, demonstrating Super PACs’ annual spending significantly exceeds party spending.

This has fundamentally shifted the balance. Parties, once the dominant actors in American politics, have become less powerful compared to Super PACs and other outside groups. The limits on coordinated party expenditure that were supposed to prevent getting around the restrictions now look less important compared to the vast sums flowing through Super PACs, which face no spending limits at all.

Removing the coordinated party expenditure limits would give parties more tools to compete with Super PACs. Parties could theoretically spend unlimited sums coordinating with candidates, whereas Super PACs can only spend on independent communications. That rebalancing might benefit parties relative to outside groups.

Or it might mean more funding overall flowing into elections.

The broader question is about who makes decisions in American elections: donors or voters. Campaign finance is now dominated by large donors in ways it hasn’t been since before Watergate. In the 2023-2024 election cycle, the top 100 federal donors alone spent more than $1.2 billion, mostly through Super PACs. Spending where the source of the funds is kept secret hit a record $1.9 billion in the 2024 federal cycle. Most Americans (80%) think major donors have too much influence over politics.

This case is one more step in a direction the Court has been moving for 50 years: gradually removing restrictions on funding in politics.

The Timeline and What Happens Next

The Court heard oral arguments on December 9, 2025. Decisions typically come by the end of their term in late June or early July, so a decision is expected by late June or early July 2026.

That timing matters. A decision in mid-2026 would come right in the middle of the 2026 midterm election season. Striking down the limits would mean candidates and parties would have to scramble to adjust their fundraising strategies months before the elections.

Maintaining the current system with limits intact means campaigns would continue operating under existing restrictions for the 2026 midterms, and the question would then be whether future cases would challenge other campaign finance limits.

The Court has ruled against campaign finance restrictions in every major case they have taken since Citizens United. Not once in that period have they upheld a campaign finance restriction they reviewed. That track record suggests they might well rule against the limits in this case.

But that’s not certain. Chief Justice Roberts’ skepticism about the distinction between coordinated expenditures and contributions, while sometimes expressed in ways that could support either side, leaves some uncertainty. Justices Barrett and Gorsuch’s minimal engagement with the oral arguments leaves their positions unclear. And there’s always the possibility that one of the conservative justices might be persuaded by the arguments that removing the limits would undermine campaign finance law more broadly by opening the door to challenges to other limits.

How to Follow the Case

If you want to follow this case, here are some resources:

The Court maintains a website with all case filings, including the briefs filed by both sides and the briefs filed by groups interested in the case. You can find those at supremecourt.gov. The oral argument transcript from December 9, 2025, is also available there.

SCOTUSblog provides up-to-date coverage and is written by lawyers and legal experts. The site has detailed analysis of this case.

When the decision comes, the opinion will explain the reasoning. If you want to understand what it means, the first thing to read is the majority opinion (the decision of the majority). Then, if there are dissents, read those—they often explain the strongest counterarguments.

To track party spending in your area, you can search the Federal Election Commission’s website (fec.gov) for campaign finance data. You can look up what your representatives and their opponents raised and spent. You can see how much Super PACs and outside groups spent in your races.

Who Benefits, Who Loses

A billionaire who wants to support a particular Senate candidate faces some constraints. They can give $3,500 directly to the candidate. They can give $44,300 to the national party. They can give unlimited amounts to a Super PAC, but that Super PAC can’t coordinate with the candidate—which makes the spending less effective.

Removing coordinated party expenditure limits means that same billionaire could give millions to the party with the understanding that the party will spend it all coordinating with that specific candidate. The party becomes a pass-through vehicle for unlimited spending that’s coordinated with the candidate—the best of both worlds for the donor.

For candidates, the winners would likely be those favored by party leadership. Incumbents. Candidates in competitive races where the party wants to invest heavily. Candidates who align with the party’s priorities.

The losers would be candidates challenging the party establishment, challengers, candidates in safe seats, and candidates who don’t have strong relationships with party leadership. If you’re running against the party establishment, and the party can now spend unlimited sums coordinating with your opponent, your path becomes much harder.

For voters, the effect is harder to predict but likely negative. More funding in politics doesn’t generally lead to better-informed voters or more responsive government. It leads to more advertising, more noise, more influence for those who can afford to participate at the highest levels.

There’s an argument—the one Francisco made—that removing the limits would help voters by strengthening parties relative to Super PACs. Parties, the argument goes, are more accountable, more transparent, and more focused on building durable coalitions than Super PACs, which are often vehicles for a single wealthy donor’s priorities.

But it’s also possible that removing the limits means more funding overall, flowing through both parties and Super PACs, with no meaningful increase in accountability or transparency.

The Broader Context: Money and Speech

The fundamental question in campaign finance law is whether spending is speech.

The Court has said yes. Spending to communicate a message is protected by the First Amendment. Restricting that spending restricts speech.

But there’s a counterargument: Spending isn’t speech; it’s a resource that enables speech. And when some people have vastly more resources than others, unlimited spending doesn’t create competition between different messages—it creates a marketplace where the wealthiest voices drown out everyone else.

The Court has consistently rejected that counterargument. In a 1976 case, the Court wrote that the government can’t limit some people’s speech to amplify others’ voices. In other words, the government can’t limit wealthy people’s spending to level the playing field.

That principle has guided the decisions on campaign finance for 50 years. The result is a system where funding flows relatively freely, contribution limits exist but are high and getting higher, and independent expenditures face no limits at all.

The current case is another test of that principle. If coordinated party expenditures are speech—and the Court has suggested they are—then limiting them restricts speech. The only question is whether the government has a strong enough reason to justify that restriction.

The government’s reason is stopping people from getting around the restrictions on how much you can give and reducing corruption. But the Court has narrowed what counts as corruption to direct bribes—explicit exchanges of funds for official action. And the Court has become skeptical of measures that prevent not corruption itself but situations that could create corruption.

Applying that narrow definition of corruption here means the limits probably can’t survive. Because coordinated party expenditures don’t involve direct bribes—the donor isn’t directly exchanging funds with the candidate for a specific official action. The donor is giving to the party, and the party is spending it.

Impact on the 2026 Midterms and Beyond

A decision in June or July 2026 would affect the 2026 midterms depending on the timing and what exactly the ruling says.

A decision in late June would give parties about four months before the November elections to adjust their strategies. That’s enough to start raising funds under the new restrictions and coordinating spending with candidates in competitive races.

The parties with the most resources and the best fundraising infrastructure would likely benefit immediately. Right now, that’s probably the Republicans, who have been more successful at raising large-dollar donations in recent cycles. But that could change.

The races most likely to see an impact are competitive Senate and House races where parties want to invest heavily. With limits removed, expect parties to pour resources into swing districts and swing states, coordinating closely with candidates to maximize the effectiveness of that spending.

For 2028 and beyond, the impact could be even larger. Presidential campaigns would be able to coordinate unlimited party spending. Senate campaigns in expensive states like California, Texas, and Florida could see party spending in the tens of millions, all coordinated with the candidate.

Some argue that strengthening parties would reduce the parties splitting into smaller groups that disagree more by giving party leaders more control over candidates and more ability to make party members follow party positions. Others argue that unlimited party spending would mean more funding in politics, more influence for wealthy donors, and more corruption.

What’s certain is that this case is part of a larger trend: the gradual removal of restrictions on funding in politics. Since Watergate, when Congress passed sweeping campaign finance reforms, the Court has steadily chipped away at those reforms, ruling that one restriction after another violates the First Amendment.

The result is a system where funding plays a larger role in politics than at any time since before Watergate. Whether that’s good for democracy depends on whether you think spending is speech or a corrupting influence—and whether you think the current system adequately protects against corruption.

The Stakes

This case will determine how much funding can flow through parties to support candidates, and how that funding can be used.

But it also matters because it’s a test of whether the Court will continue removing restrictions on campaign spending, or whether they will draw a line and say that some restrictions are necessary to prevent corruption and protect the integrity of elections.

The Court has been on a consistent trajectory for 15 years: striking down campaign finance restrictions to protect free speech. Citizens United in 2010. McCutcheon in 2014. Arizona Free Enterprise Club’s Freedom Club PAC v. Bennett in 2011. American Tradition Partnership v. Bullock in 2012. In every major case, the Court has ruled against campaign finance restrictions.

Striking down coordinated party expenditure limits would continue that trend. And it would signal that virtually no campaign finance restriction is safe from constitutional challenge.

Upholding the limits would be the first time in 15 years the Court has sided with campaign finance restrictions. That would suggest that the Court recognizes some limits on funding in politics are necessary, even if those limits restrict speech.

The decision will come in the middle of a presidential election year, when Americans are thinking about politics and paying attention to who’s funding campaigns. It will come at a time when trust in government is low, when most Americans think the system is rigged in favor of the wealthy, and when concerns about corruption and funding in politics are widespread.

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