Lincoln-Douglas Debate Topics

Lincoln-Douglas is a one-on-one format about values. Resolutions rotate every two months on the NSDA calendar. The framework debate, your value, your criterion, why your standard for evaluating the round wins, usually decides the ballot before the contention-level debate matters.

September/October 2026: outer space colonization

The 2026-27 season opens on Resolved: Outer space colonization is a moral imperative. The word doing the work is imperative. The Aff does not win by showing colonization is good, or even very good. It has to show the obligation is binding, so a judge who thinks settling Mars would be admirable but optional votes Neg. Build the Aff framework around a duty, not a benefit, and expect the Neg to run supererogation as its cleanest route to the ballot.

Aff frameworks that fit this resolution

• Value: human survival. Criterion: minimizing existential risk. A single-planet species has a single point of failure. Any non-zero annual risk of an extinction-level event compounds to near-certainty over a long enough horizon, so redundancy is not a preference, it is the condition of there being anyone left to have preferences. Strongest link to "imperative" of any Aff framework, because the duty falls out of the stakes rather than out of ambition.
• Value: morality. Criterion: duty to future generations. Future people have interests even though they do not yet exist, and the number of them dwarfs the present population. If we are the only generation positioned to open the exit, declining is a choice made on their behalf without their consent.
• Value: human flourishing. Criterion: expanding the scope of human capability. Weaker on "imperative" and easier to defend on solvency. Use it against a Neg that wants a feasibility debate rather than a moral one.

Neg frameworks that fit this resolution

• Value: justice. Criterion: prioritizing the worst-off. The Rawlsian press, and the most reliable Neg on this topic. Every dollar and decade spent on settlement is not spent on people who are dying now of causes we already know how to fix. Opportunity cost is a real moral cost, not an accounting one.
• Value: morality. Criterion: consistency with anti-colonial ethics. The resolution says colonization, not exploration or settlement, and the word carries its own history of extraction and displacement. Argue the framing reproduces the logic it names. Aff answers this with a definitional split, so decide early whether you want that fight.
• Value: human dignity. Criterion: refusing to treat people as means. Early settlements are total-dependency environments. Anyone whose air supply is controlled by the authority they live under has no exit and no leverage, which is a structural condition for coercion rather than an accident of it.
• The supererogation press, which is not a framework but wins rounds. Grant the Aff every impact and still take the ballot: praiseworthy is not the same as obligatory, and the resolution asked for obligatory.

Where the round actually turns

Magnitude against timeframe. The Aff impact is enormous and remote; the Neg impact is smaller and present. An Aff that never does the probability work loses to "your extinction event is speculative and their child is hungry today." A Neg that never contests the framework ends up conceding that survival outweighs and losing on magnitude alone. Both sides should pre-empt the irreversibility comparison, because it cuts in both directions: extinction cannot be undone, and neither can a generation of misallocated resources.

The framework debate is the round

LD splits into framework, contention, and weighing layers. Most rounds are decided at the framework layer, whose value (justice, morality, autonomy, welfare) and whose criterion (the standard for measuring whether the value is upheld) the judge accepts. Contentions are downstream of the framework. Lose the framework debate, lose the round even if your contentions are stronger. For worked pairings, see our guide to value and criterion examples with full warrants for each.

Common LD values, with criterion pairings

These are the values that actually show up on ballots, each with the criterion it most often pairs with and the kind of resolution it fits. A value without a criterion is a slogan; the pairing is the framework.

• Justice · criterion: giving each their due, or proportionality. The default on criminal-justice and rights resolutions. Proportionality fits punishment topics; "each their due" fits distribution topics.
• Morality · criterion: consistency with the categorical imperative. The Kantian pairing. Strong when the resolution asks whether an act is permissible at all, weak when it asks about outcomes.
• Societal welfare · criterion: maximizing expected well-being. The utilitarian pairing. Fits policy-flavored resolutions with measurable impacts; invites the classic Neg press that util justifies anything.
• Human dignity · criterion: Kantian respect for persons. Treats people as ends, never merely means. Sharp against surveillance, coercion, and instrumentalization topics.
• Autonomy · criterion: protecting informed consent. Fits bodily-choice, speech, and paternalism resolutions. The standard clash is autonomy versus welfare.
• Individual rights · criterion: minimizing rights violations. A side-constraint framework: some acts are off the table whatever the payoff. Pairs naturally against a util opponent.
• Equality · criterion: the veil of ignorance, or maximin. The Rawlsian pairing. Fits structural-fairness resolutions; ask which world the worst-off person would choose.
• Life or security · criterion: preventing irreversible harm. Fits weapons, war-powers, and existential-risk topics. Irreversibility is the weighing lever: you can recover liberty, not lives.

For the same eight pairings with full warrants and answers, see the value and criterion examples guide.

Worked example: Aff strategy on restorative justice

Restorative versus retributive justice is not an NSDA resolution. It is a practice motion, used here because the value-criterion pairings transfer to most criminal-justice topics. Common Aff frameworks:

• Value: Justice. Criterion: minimizing harm. Restorative reduces recidivism better than retribution, so it produces less long-run harm. Cite Sherman & Strang's meta-analysis.
• Value: Human dignity. Criterion: Kantian respect for persons. Retribution treats offenders as objects of state vengeance. Restorative treats them as moral agents who can repair what they broke.
• Value: Communitarian flourishing. Criterion: social cohesion. Restorative reintegrates offenders into the community. Retribution exiles them and reproduces the alienation that caused the original offense.

Worked example: Neg strategy on restorative justice

• Value: Justice. Criterion: proportionality. Retribution is the only system where punishment scales to the wrong. Restorative outsources that to the victim and produces unequal outcomes for similar offenses.
• Value: Rights. Criterion: deterrence. Citizens have a right to safety. Retribution deters more reliably than reconciliation. Empirical: incapacitation effects of incarceration.
• Kant on retribution. Punishment is a moral duty owed to the offender as a rational agent. Restorative substitutes therapy for justice and disrespects the offender's moral agency.

Weighing in LD

Once the framework is decided, weighing is about which contention links most strongly to the criterion. Strong weighing comparisons:

• Strength of link. "My criterion is dignity. Their evidence is about recidivism rates. Recidivism doesn't measure dignity. My evidence directly does."
• Time horizon. "Their impact is short-term safety. Mine is generational community repair. Long-term outweighs because rights are non-fungible across generations."
• Magnitude vs. probability. "Their harm is lower probability but higher magnitude; that wins under expected value calculus."

2026-27 season resolutions

2025-26 season resolutions

Lincoln-Douglas FAQ

What is Lincoln-Douglas debate?

Lincoln-Douglas (LD) is a one-on-one debate format about values. Each topic resolution is normative ("A just society ought..."). The debate is framed by a value (the larger ethical concept being protected) and a criterion (the standard for weighing competing claims). Traditional LD is philosophical; circuit LD has absorbed kritiks, theory, and speed from Policy.

What are common values in Lincoln-Douglas debate?

The values judges see most: justice, morality, societal welfare, human dignity, autonomy, individual rights, equality, and life or security. Each needs a criterion to do any work in the round; the pairings above show which criterion each value usually rides with and which resolutions it fits.

What is the value-criterion?

The value is the larger ethical concept the debater says the round should turn on (justice, autonomy, dignity, welfare). The criterion is the operational standard for measuring whether the value is upheld (minimizing harm, Kantian respect for persons, expected-utility maximization). Contentions then link to the criterion. Most rounds are decided at the framework layer before the contention debate matters. See value and criterion examples for eight common pairings.

How long are LD speeches?

Affirmative Constructive (AC): 6 minutes. Negative Constructive (NC): 7 minutes (this includes a built-in 1NR portion). First Affirmative Rebuttal (1AR): 4 minutes. Second Negative Rebuttal (2NR): 6 minutes. Second Affirmative Rebuttal (2AR): 3 minutes. Two 3-minute cross-examinations. The 1AR is the structural challenge: four minutes to cover seven minutes of NC.

Is LD philosophical or evidence-based?

Both. Traditional LD is primarily philosophical literature (Kant, Mill, Rawls, Nozick, Singer) plus empirics for contentions. Cards exist but are shorter than Policy cards, usually 2-3 sentences of a philosopher. Circuit LD includes kritiks (often Critical Race Theory, capitalism K, settler colonialism) and theory shells. Match the audience: lay judge means values-only and plain English; flow judge accepts the full toolkit.

What is the 1AR?

First Affirmative Rebuttal. Four minutes. Aff's first chance to respond to the seven-minute NC plus the 1AC. Time pressure forces the 1AR to collapse: pick the strongest 2-3 arguments, extend offense, group together what the Neg dropped. Losing the 1AR almost always loses the round because the 2AR is only three minutes and can't introduce new arguments.

What is a kritik in LD?

A kritik (K) is a philosophical objection to the resolution's underlying assumptions or to the act of debating it under those assumptions. Common Ks in circuit LD: capitalism K, security K, settler colonialism, anti-blackness, biopower (Foucault). Structure: link (the case engages in the criticized behavior), impact (the harm of doing so), alternative ("reject the case and embrace [X discourse]"). Lay LD rarely uses kritiks.

How is LD different from Policy?

LD is one-on-one and turns on a value-criterion framework. Policy is two-on-two, runs a single resolution for the full season, and centers on plan-versus-counterplan with stock issues (topicality, inherency, harms, solvency). LD speeches are shorter; Policy is the fastest-spreading format. Both circuit-LD and Policy use kritiks, but Policy's kritik debate is denser and tied to the year-long topic.

Can you read theory in LD?

On the national circuit, yes. Theory shells argue procedural rules: "my opponent must disclose positions on the wiki," "my opponent must reject competing interpretations," "my opponent's tricks are abusive." Standards (limits, ground, education, fairness) plus voters (reject the argument or reject the debater). Traditional and lay LD judges usually reject theory or weigh it lightly. Read the judge paradigm before going for theory.

Specific moves

Short guides on the moves that win specific LD speeches.

• LD value and criterion examples. Classic pairings (Justice / Veil, Morality / Cat. Imperative, Wellbeing / Util), how to link each contention to the criterion.