Scale tilting from evidence to intuition with the US Capitol in the background.

Is Evidence Losing Out to Intuition? The Shift in US Politics and What It Means for You

"New research reveals a worrying trend: evidence-based reasoning is declining in US Congressional speeches. Discover how this shift impacts policy, society, and your understanding of truth."


In an era defined by rapid change and complex challenges, the foundations of sound decision-making are more critical than ever. Democracies thrive on honest and truthful governance, where accountability and transparency are paramount. But what happens when the very basis of our decisions—the way we perceive and pursue truth—begins to shift?

A fascinating new study delves into this question by analyzing over a century of US Congressional speeches. The research reveals a concerning trend: a gradual decline in evidence-based language, replaced by a growing reliance on intuition and subjective interpretations. This isn't just an academic observation; it's a phenomenon with far-reaching consequences for policy, society, and the health of our democratic institutions.

This article breaks down this complex research, exploring the nuances of this shift, its potential causes, and what it means for you. We'll examine the evidence, consider the implications, and discuss how we can navigate this changing landscape to promote more informed and effective governance.

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Defining the Political Arena

Politics is defined as relating to government or the conduct of government, while a political system is the framework that defines acceptable political methods within a society. Political thought stretches back to early antiquity, with foundational works such as Plato's Republic, Aristotle's Politics, Confucius's political manuscripts, and Chanakya's Arthashastra. Today, that tradition plays out in a crowded media landscape, where outlets like AP News deliver breaking political coverage and Politico, founded in 2007 by Robert Allbritton, provides continuous political reporting. These sources reflect how modern audiences track whether governing decisions rest on evidence or on intuition and rhetoric.

How Political Coverage Is Usually Done

The standard approach to following US politics relies on major political news organizations tracking administration actions and policy conflicts in close to real time, as exemplified by POLITICO's extensive coverage of the U.S.-Canada trade war. Political leaders also offer their own prescriptions for how the country should operate, with Utah Gov. Spencer Cox's new book exploring what it would take to heal the division within American politics. These methods emphasize documenting events and arguing for unity, but they carry a limitation: headline-driven reporting and individual calls for healing cannot by themselves measure whether evidence or intuition is driving policy choices.

A Long Arc of Political Thought

The question of whether governance should rest on evidence or on conviction is one that political thinkers have grappled with for centuries, though the available material here does not provide specific milestones to document. Historically, debates about how leaders should reason and decide have shifted across eras, with some periods favoring careful deliberation and others rewarding bold instinct. Without dedicated source material, specific dates and breakthroughs should be treated cautiously. What can be said generally is that today's tension between evidence and intuition has deep roots rather than being a purely modern development.

The Decline of Evidence: A Century-Long Trend

Scale tilting from evidence to intuition with the US Capitol in the background.

The study, led by researchers at the University of Konstanz and other institutions, analyzed millions of Congressional speeches from 1879 to 2022. Using sophisticated computational text analysis, they tracked the prevalence of evidence-based language—words and phrases associated with facts, data, and verifiable information—compared to intuition-based language, which reflects feelings, instincts, and personal values.

The findings paint a clear picture: while evidence-based language remained relatively stable for the first half of the 20th century, it began a steady decline in the mid-1970s. This decline coincides with a decrease in legislative productivity and a rise in partisan polarization, suggesting a potential link between the way our leaders communicate and their ability to govern effectively.

  • 1879-1970s: A period of relative stability in the use of evidence-based language in Congressional speeches.
  • Mid-1970s Onward: A consistent decline in evidence-based language, signaling a shift in rhetorical styles.
  • Evidence-Minus-Intuition (EMI) Score: A key metric used to quantify the balance between evidence-based and intuition-based language.
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Following the Story As It Unfolds

NBC News's politics section offers a running account of the latest political stories, photo and video coverage organized around the Trump administration, Congress, Democrats, and Republicans. This rolling coverage functions as a continuous review of current events rather than formal academic research, tracking the decisions and disputes that raise the evidence-versus-intuition question. The steady focus on the administration and on Congressional dynamics shows how reporting keeps pace with fast-moving political developments. Such coverage gives the public a contemporary snapshot, even if it does not settle deeper methodological debates.

Where the Evidence Approach Stumbles

Any claim that evidence is losing ground to intuition in US politics must acknowledge that the available material here does not provide documented counterarguments or specific failures to cite. Criticisms of a purely evidence-driven view typically note that data can be interpreted conflictingly and that intuition often encodes experience that statistics miss. It is equally possible that intuition's perceived rise is exaggerated by uneven coverage rather than being a measured phenomenon. These considerations should be treated as reasonable cautions rather than settled conclusions, given the absence of direct sourcing on this point.

Evidence and Intuition, Side by Side

Comparing evidence-based and intuition-driven approaches to politics requires source material that is not available for this subsection, so any comparison here must remain general. Observers often characterize evidence as slow, verifiable, and cumulative, while intuition is seen as fast, visceral, and persuasive in emotionally charged settings. Each has apparent strengths, with evidence offering accountability and intuition offering immediacy and human connection. Without dedicated sources, this framing is offered cautiously rather than as a documented finding.

To measure this shift, researchers developed the Evidence-Minus-Intuition (EMI) score, a metric that quantifies the balance between evidence-based and intuition-based language. A higher EMI score indicates a greater reliance on facts and data, while a lower score suggests a preference for subjective interpretations. The EMI score is an important instrument that enable and quantified a major shift in US political rethoric.

Reclaiming Evidence: A Path Towards Better Governance

The study's findings serve as a wake-up call, highlighting the importance of evidence-based reasoning in maintaining a healthy democracy. While intuition and personal values certainly have a role to play in decision-making, an overreliance on them can lead to policies that are divorced from reality and fail to address the needs of the people. By fostering a culture that values facts, data, and critical thinking, we can empower our leaders to make more informed decisions, bridge partisan divides, and build a more just and prosperous society for all.

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Bringing the Threads Together

Pulling together the arguments about evidence and intuition in politics requires expert commentary and synthesis, but no source material was provided for this subsection. What can be said generally is that synthesizing the debate involves reconciling the competing pulls of verifiable information and emotional resonance. Expert analysis, when available, typically weighs the credibility of claims against the speed and appeal of intuitive appeals. This synthesis is therefore offered as a general observation pending dedicated commentary from authoritative sources.

Where the Debate May Head

Looking ahead, the future of the evidence-versus-intuition debate in US politics cannot be forecast with specificity because no source material was provided for this subsection. Plausible directions include the growing use of data in campaigning and governance, alongside the continued appeal of instinct-based leadership and messaging. Newer platforms may also accelerate intuition-driven communication, making evidence harder to verify in real time. These are reasonable possibilities to flag, but they should be read as speculation rather than documented projections.

The Structural Stakes

The systemic challenges behind the shift between evidence and intuition in politics extend beyond any single election or policy dispute, though this subsection lacks source material to document them directly. Wider structural issues might include how political institutions weigh expert input against public sentiment and how media incentives shape which arguments gain prominence. Such challenges are enduring features of democratic governance rather than short-term problems. These observations should be treated as general context in the absence of dedicated sources.

People, Trust, and Political Information

At the center of the evidence-versus-intuition question are real people trying to make sense of a complex political world, and RealClearPolitics positions itself as an independent, non-partisan media company serving that need as a trusted source for the best news, analysis, and commentary. The human element shows up in the trust audiences place in outlets that promise to sort through competing claims and perspectives. That promise matters most in a polarized environment where the same event can be framed very differently. By aggregating news, analysis, and polls, such outlets aim to give individuals a workable picture of what is actually happening.

How the speech analysis compares with other political-language studies

A separate project used vocal pitch to study legislators’ emotional intensity, rather than the evidence-to-intuition language continuum examined here.[1] [2]

Research on the UK House of Commons developed a framework for comparing text-analysis methods and estimated polarization in parliamentary speech; it does not directly measure the same US rhetorical contrast.[2] [3]

Other work describes increased partisanship in congressional speech and rising polarization in roll-call voting, providing related political context rather than a direct test of this study’s language measure.[4] [5]

What the study examined in congressional speeches

PopulationCongressional speeches[2]
Duration1879 to 2022[2]
Comparisonevidence-based reasoning and intuitive decisions[2]
Times cited0[2]

What remains unresolved about rhetoric and governance

  • What mechanisms connect a shift in congressional language with changes in legislative productivity, polarization, or inequality? The reported co-occurrence does not establish a causal direction.[2]
  • How well does the language continuum distinguish a change in rhetorical style from a change in how speakers express facts, feelings, and subjective judgments?[2]

About this Article -

Written with AI assistance from published research, and reviewed by the Mystum team. See our About page for more information.

This article is based on research published under:

DOI-LINK: https://doi.org/10.48550/arXiv.2405.07323,

Title: Computational Analysis Of Us Congressional Speeches Reveals A Shift From Evidence To Intuition

Subject: econ.gn cs.cy q-fin.ec

Authors: Segun Taofeek Aroyehun, Almog Simchon, Fabio Carrella, Jana Lasser, Stephan Lewandowsky, David Garcia

Published: 12-05-2024

Everything You Need To Know

1

What is the Evidence-Minus-Intuition (EMI) score, and why is it significant in the context of US Congressional speeches?

The Evidence-Minus-Intuition (EMI) score is a metric developed by researchers to quantify the balance between evidence-based and intuition-based language in US Congressional speeches. It is calculated by analyzing the frequency of words and phrases associated with facts and data (evidence-based language) versus those related to feelings and personal values (intuition-based language). A higher EMI score signifies a greater reliance on evidence, while a lower score indicates a shift towards intuition. The significance of the EMI score lies in its ability to reveal a long-term trend: a decline in evidence-based language since the mid-1970s, which coincides with decreased legislative productivity and increased partisan polarization.

2

How did the use of evidence-based language in US Congressional speeches evolve over time, and what periods were identified by the study?

The study analyzing US Congressional speeches from 1879 to 2022 revealed a significant shift in language usage. Before the mid-1970s, the use of evidence-based language remained relatively stable. However, from the mid-1970s onward, the study observed a consistent decline in the use of evidence-based language. This transition signals a notable change in rhetorical styles within the Congress, moving away from facts, data, and verifiable information toward rhetoric based more on intuition, feelings, instincts, and personal values.

3

What are the potential implications of the decline in evidence-based reasoning in US politics, as indicated by the research?

The decline in evidence-based reasoning, as observed in US Congressional speeches, carries several potential implications. Firstly, it may contribute to a decrease in legislative productivity because it can be more difficult to reach agreements when arguments are not grounded in shared facts. Secondly, this shift can fuel partisan polarization, as politicians may rely more on subjective interpretations and personal values, which can exacerbate divisions. Finally, an overreliance on intuition can lead to policies that are disconnected from reality and less effective in addressing the needs of the populace.

4

What specific role does the study suggest for intuition and personal values in decision-making within a democratic context?

The study acknowledges that intuition and personal values do have a role in decision-making, but it also cautions against an overreliance on them. While these elements can contribute to a holistic understanding of complex issues and help in considering diverse perspectives, they should not overshadow the importance of evidence-based reasoning. The study's findings underscore that in order to build a more just and prosperous society, facts, data, and critical thinking are vital for making informed decisions, bridging partisan divides, and creating effective policies.

5

How can a culture that values facts and data contribute to the improvement of governance and democratic institutions, according to the research?

According to the research, fostering a culture that values facts, data, and critical thinking can significantly improve governance and strengthen democratic institutions. By prioritizing evidence-based reasoning, leaders can make more informed decisions, leading to policies that are more effective and better aligned with the needs of the people. This approach encourages transparency and accountability, which are fundamental for maintaining the health of a democracy. Moreover, it promotes bridging partisan divides by establishing a shared foundation of verifiable information that everyone can agree upon. Ultimately, an emphasis on facts empowers leaders to make more informed decisions and build a more just and prosperous society.

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