Bipartisanship and the Gap Between Rhetoric and Policy

Bipartisanship, the practice of members from opposing political parties working together on legislation and governance, has not vanished from American politics so much as it has become rarer and more selective about where it shows up. The popular narrative treats cross-party cooperation as a relic, but the reality is more complicated. Research suggests that on certain measures, contemporary parties are less divided than roll-call voting scores imply, even as the tone of political communication has grown sharply more hostile. Understanding why bipartisanship seems scarce, where it quietly persists, and what structural changes could encourage more of it requires pulling apart several threads that are often tangled together in public discussion.

The Gap Between Rhetoric and Policy

One of the most persistent misconceptions about bipartisanship is that Congress is more ideologically divided today than at any point in modern history, full stop. That claim is true if you look at raw roll-call votes, where the two parties increasingly line up on opposite sides. But a closer look at what those votes are actually about paints a different picture. A study spanning more than a century of House votes found that when you incorporate information about the policies being voted on, contemporary parties are relatively less divided than is commonly thought, and the conflict occurs in a smaller, more liberal portion of the policy space. In other words, the parties fight loudly and consistently, but they fight over a narrower set of issues than the voting scorecards suggest.

1American Journal of Political Science. A House Divided? Roll Calls, Polarization, and Policy Differences in the U.S. House, 1877–2011

This matters because much of the alarm about the death of bipartisanship is driven by polarization metrics that treat every party-line vote as equal. A procedural vote on a rule change and a substantive vote on immigration reform both count the same in the standard scores, even though one represents a genuine policy disagreement and the other is largely about legislative gamesmanship. The perception of total warfare can become self-reinforcing: members see the polarization scores, media outlets report them, and the expectation that compromise is impossible becomes an excuse not to try.

Why the Tone Keeps Getting Worse

Even if policy disagreements are narrower than they appear, the way politicians talk about them has become measurably nastier, and social media has a lot to do with it. Research analyzing congressional tweets found that more ideologically extreme members, those from safer districts, and those not in the president’s party are more likely to send polarizing messages. Crucially, those polarizing tweets garner more engagement, and that engagement translates into increased campaign funding for the members who post them.

2Legislative Studies Quarterly. Dynamics of Polarizing Rhetoric in Congressional Tweets

This creates a feedback loop that actively punishes bipartisan behavior in the public square. A lawmaker who tweets about a cooperative bill they helped shepherd through committee gets a fraction of the attention that a lawmaker lobbing grenades at the other party receives. The incentive structure of platforms built on engagement rewards conflict over collaboration. A member in a safe district has little electoral reason to moderate their language and a strong financial reason to escalate it. The result is that even members who quietly work across the aisle on legislation feel pressure to sound combative online, which in turn shapes the public’s impression that no cooperation is happening at all.

This dynamic is worth separating from the question of whether voters themselves have become impossible to satisfy with compromise. The platform incentives exist independently of public opinion. They reward the loudest voices regardless of whether the median voter wants a fight or a deal.

Partisan Conflict Spills Into the Economy

When bipartisan cooperation breaks down, the consequences extend well beyond legislative gridlock. Research examining the relationship between partisan conflict and economic policy uncertainty found that partisan conflict consistently precedes spikes in fiscal, tax, spending, and healthcare uncertainty. The causal direction runs primarily from political fighting to economic unease, not the other way around, except during large external shocks like trade wars or financial regulation crises, where the pattern reverses temporarily.

3Springer. Partisan conflict and economic policy uncertainty: insights from a time-varying causality approach

For businesses, investors, and ordinary households, this means that the inability of Congress to reach bipartisan agreement on fiscal and health policy is not just a Washington drama. It generates real uncertainty about tax rates, spending levels, and regulatory environments, which can delay hiring, suppress investment, and make long-range planning harder. Interestingly, the study also found that during recessions, the link between partisan conflict and economic uncertainty largely disappears, perhaps because economic crises tend to temporarily suppress political posturing or force emergency cooperation. That pattern fits historical examples like the rapid bipartisan passage of pandemic relief legislation in early 2020, before the cooperation collapsed as the crisis dragged on.

Personal Relationships Still Matter

One of the less glamorous findings in congressional research is that cross-party collaboration is significantly influenced by whether lawmakers actually know each other personally. A study drawing on interviews with senior congressional staff and data on official overseas trips taken by members of Congress showed that interpersonal relationships help promote collaboration across the aisle.

4Legislative Studies Quarterly. Interpersonal Relationships and Legislative Collaboration in Congress

This may sound obvious, but the structural trend in Congress has moved steadily against it. Members increasingly fly back to their districts on weekends rather than spending time in Washington socializing with colleagues. The old practice of families from both parties living in the same neighborhoods and their children attending the same schools has largely disappeared. Committee work, where members from both parties once spent long hours together hashing out details, has been weakened as party leadership has centralized more decision-making. Each of these shifts reduces the casual human contact that lubricates compromise.

Shared travel, such as the official congressional delegation trips studied in that research, serves as one of the remaining structured opportunities for members to spend time together outside partisan contexts. The trips are sometimes mocked as junkets, but the evidence suggests they produce measurable increases in cosponsorship across party lines. When you have eaten dinner with someone a few times and heard about their family, it gets harder to treat them as a political enemy. The erosion of these informal spaces may be as important to the decline of bipartisanship as any ideological shift.

Does Public Hostility Actually Prevent Compromise?

A common assumption in discussions of bipartisanship is that the electorate has become so tribally hostile toward the other party that lawmakers cannot compromise even if they want to, because their base would punish them. There is no question that Americans increasingly dislike members of the opposing party. But whether that emotional hostility actually changes political behavior is a more open question than you might expect.

A set of experiments involving more than 12,000 participants tested what would happen if affective polarization were dialed back to levels from roughly three decades ago. The researchers found no evidence that reducing this kind of emotional hostility changed people’s political choices in meaningful ways. It did not make them less likely to endorse norm violations, more willing to hold their own party’s politicians accountable, more open to compromise, or less prone to adopt their party’s views. The effects were limited to general interpersonal attitudes, like how warmly people felt toward members of the other party in the abstract.

5American Journal of Political Science. Does Affective Polarization Undermine Democratic Norms or Accountability? Maybe Not

This is a genuinely surprising finding, and it complicates the story in an important way. If reducing dislike of the other party does not actually make people more willing to accept compromise, then the obstacle to bipartisanship may not be primarily about emotions at all. It may be more about identity, issue positions, or institutional incentives that operate independently of how angry people feel. Initiatives aimed at reducing partisan hostility, like cross-party dialogue programs, might improve social cohesion without doing much to change the political incentive structure that blocks cooperation in Congress.

Intellectual Humility as a Quieter Variable

While reducing general dislike of the other party may not change much, there is evidence that a more specific psychological trait does matter. A national survey found that people who hold their political beliefs with intellectual humility, a genuine openness to the possibility that they could be wrong, feel less hostility toward people who disagree with them on specific issues. This held up not just as a correlation but as a causal relationship: when an experiment primed participants to think with more intellectual humility, their hostility toward dissenters decreased without changing their underlying political opinions.

6Political Psychology. You Know You’re Right: How Intellectual Humility Decreases Political Hostility

The distinction between this and affective polarization is subtle but important. General warmth toward the other party seems disconnected from actual political behavior. But issue-specific humility, the willingness to entertain that the other side might have a point on a particular policy question, does appear to reduce the kind of hostility that could make compromise personally unacceptable. This suggests that bipartisanship may be less about getting people to like each other and more about encouraging a style of engagement where being wrong on a specific issue does not feel like a threat to one’s identity.

Where Bipartisanship Quietly Persists

Foreign policy has historically been the area where bipartisanship was most expected. The old saying that politics stops at the water’s edge reflected a genuine norm through much of the 20th century, particularly during the Cold War. That norm has weakened significantly. Scholars now observe that polarization in the United States has risen across the board, and few expect partisan conflict to stay out of foreign affairs any longer.

7PubMed Central. Polarization and US foreign policy: key debates and new findings

Still, foreign policy remains an area where cross-party cooperation is more common than in domestic policy, even if less common than it used to be. Defense authorization bills, sanctions packages, and certain types of foreign aid still tend to attract support from both parties in ways that healthcare or tax legislation rarely do. Part of this is structural: foreign policy often involves classified information that creates a shared sense of responsibility among committee members, and the executive branch’s dominant role means Congress is often reacting together rather than initiating competing proposals. Part of it is that foreign threats can create genuine rallying effects that temporarily override partisan incentives.

The erosion of bipartisanship in foreign policy is worth watching precisely because it represents the frontier. If the last bastion of cross-party cooperation becomes fully partisan, it would mark a qualitative shift in how the American political system functions, with potential consequences for alliance management, treaty commitments, and the credibility of long-term foreign policy strategies that depend on continuity across administrations.

The Small-Donor Myth

A popular explanation for declining bipartisanship is that small-dollar online fundraising has empowered ideological extremists. The story goes that extreme candidates can bypass traditional donors by tapping into a vast pool of small contributors who reward ideological purity and punish moderation. If true, this would mean the financial incentive structure of elections has shifted to favor the most partisan candidates.

The evidence for this is weaker than the narrative suggests. A study examining whether ideologically extreme candidates actually solicit smaller donations, as the theory would predict, found that ideological extremism had no bearing on the amounts candidates asked for. After controlling for party, income levels, and fundraising platform usage, extreme and moderate candidates solicited essentially the same donation amounts. The researcher interpreted this as evidence that extreme candidates do not find it profitable to target small donors specifically, which undercuts the idea that small donors are more ideologically extreme than larger ones.

8Research & Politics. Fundraising on the fringe: Do ideologically extreme candidates solicit small donations?

This does not mean money plays no role in polarization. The social media engagement dynamic described earlier, where polarizing rhetoric generates more attention and more campaign funds, is well documented. But the specific mechanism of small donors pushing candidates toward extremism appears overstated. The financial pressure against bipartisanship may come less from the donor pool itself and more from the media ecosystem that rewards inflammatory content with visibility, which then converts to donations regardless of their size.

Can Ranked-Choice Voting Help?

If the incentive structures of elections reward polarization, changing those structures is a logical place to look for solutions. Ranked-choice voting has emerged as the most prominent proposed reform. Under this system, voters rank candidates in order of preference, and candidates who are broadly acceptable across the electorate have an advantage because they can pick up second-choice votes from supporters of eliminated candidates. The theory is that this forces candidates to appeal beyond their base, moderating both their rhetoric and their policy positions.

The theoretical case is straightforward, and a legal analysis has argued that ranked-choice voting reduces polarization by requiring candidates to appeal to a broader base of the electorate and forcing them to moderate their rhetoric and policies.

9University of Pittsburgh Law Review. Depolarizing America with Ranked-Choice Voting

Maine provides the most studied real-world test case. After adopting ranked-choice voting for federal races, a study using synthetic control methods estimated a roughly 20 percent reduction in the rhetorical extremism of candidate platforms. A separate statistical model produced a similar estimate of about a 20.5 percent decrease. The researchers attributed the effect to the incentives inherent in the system, particularly the need to secure broader voter appeal.

10Harvard University DASH. More Choices, Less Extremism: The Effect of Ranked-Choice Voting on Political Extremism in Maine

A 20 percent reduction in rhetorical extremism is meaningful but not transformative. It suggests ranked-choice voting shifts the margin rather than overhauling the political landscape. Maine is also a relatively small state with distinctive political culture, and the reform has only been in place for a few election cycles, so the long-term and large-scale effects remain to be seen. Alaska, which adopted a similar system, offers another test case, though its unique political dynamics make direct comparisons tricky. Several cities have adopted ranked-choice voting for local elections, and more states are considering it, so the evidence base should grow considerably in the coming years.

What ranked-choice voting cannot fix is the social media incentive problem. Even if candidates moderate their campaign rhetoric to win second-choice votes, the platforms they use to communicate with voters still reward conflict. A candidate might run a moderate campaign while their surrogates and allies flood social media with polarizing content. Electoral reform and media ecosystem reform may need to work in tandem for either to have its full effect.

The Foreign Comparison Problem

Americans often look to other democracies and wonder why multiparty systems seem to produce more coalition governance. The intuition is reasonable: if you have five parties instead of two, governing requires building alliances, and alliances require compromise. Some countries with proportional representation systems do sustain more cross-party cooperation as a structural feature of government, because no single party wins outright majorities and coalition-building is the only path to power.

But importing those lessons to the American context is harder than it seems. The United States has a presidential system with separated powers, strong committee structures, and single-member districts for most legislative seats. These features create very different incentive structures than a parliamentary system where the executive depends on maintaining a legislative coalition. Proportional representation reduces the winner-take-all dynamic that encourages polarization, but grafting it onto a system designed around two-party competition would require constitutional-level changes that are not seriously on the table.

The more practical comparative lessons may come from specific institutional innovations rather than wholesale system changes. Some democracies have experimented with citizens’ assemblies, where randomly selected citizens deliberate on contentious policy questions and produce recommendations. These assemblies have shown promise in places like Ireland, where a citizens’ assembly helped break a decades-long political deadlock on constitutional questions. Whether similar mechanisms could function within the American system, where political culture is more adversarial and institutional trust is lower, remains an open question. But they represent a different approach to the problem: instead of trying to reform the incentives of elected officials, they create a parallel space where ordinary citizens model the kind of deliberation that bipartisanship is supposed to produce.