Should Conservatives Support Drug Legalization? Both Sides Make Their Case

Put two conservatives in a room and ask whether drugs should be legal, and you will not get a debate. You will get a family argument, complete with raised voices and a long silence over the potatoes. That is because both sides are standing on principles conservatives actually hold.

I want to do something unfashionable here: lay out both arguments fairly, then tell you where I come down and why. If you leave this essay thinking the other camp is stupid or wicked, I have failed. They are neither. They are answering different questions, and the trick is to find out which question matters most.

Define the terms

Most bad arguments about drugs begin with a word nobody defined, so let me define three.

Prohibition means making the sale, possession or use of a substance a crime. Decriminalization means keeping the substance illegal but replacing criminal penalties with civil ones, like a fine. Legalization means removing the prohibition and regulating the substance the way we regulate alcohol or tobacco, with licenses, age limits and taxes.

Those are three different policies, and a person can support one and oppose another. Someone who wants to stop jailing users for possession is not necessarily someone who wants drugs sold at the corner store. And "drugs" is not one thing. Marijuana, opioids, methamphetamine and cocaine differ in danger, in how they spread and in what happens to the people who use them. Anyone who says "legalize drugs" or "ban drugs" as if all the substances were the same is not offering a policy. They are offering a bumper sticker.

Two other facts frame the debate. First, federal drug law rests on the Controlled Substances Act of 1970, which sorted drugs into schedules. Second, the states have long been laboratories, and in the twenty-first century some have run very different experiments on marijuana. Both facts matter below.

The case for legalization: liberty and limited government

Start with the libertarian-leaning conservative, because that argument has real intellectual weight and a distinguished history on the right.

The argument has four parts.

1. Self-ownership. A free person owns his own body and may do things with it that other people disapprove of, so long as he does not harm anyone else. The government's job is to protect rights, not to run a man's life for his own good. John Stuart Mill made the point on the left of the old liberal tradition, and many conservatives share a version of it.
2. The government has been bad at this. Prohibition imposes enormous costs: enforcement, prisons, a black market that makes violence profitable, and cartels that exist only because the product is illegal. Alcohol Prohibition under the Eighteenth Amendment, ratified in 1919 and repealed by the Twenty-first in 1933, is the standard exhibit. It did not end drinking. It handed the trade to organized crime and eroded respect for the law.
3. Federalism and scale. The Constitution lists the powers of Congress, and no clause says "Congress shall regulate what a man puts into his body." The case for national drug prohibition rests on stretching the Commerce Clause, a stretch conservatives have criticized when the subject is health insurance or farm quotas.
4. Cost to families and to the rule of law. A criminal record for possession can lock a person out of work, housing and education for decades. A conservative who cares about work and the family should be uneasy about a policy that makes it hard to hold either.

This tradition has a landmark. In February 1996, William F. Buckley Jr.'s National Review published a symposium titled "The War on Drugs Is Lost," in which the magazine's editors and a handful of other contributors, including a big-city mayor, a former police chief, a federal judge, a psychiatrist and a law professor, argued that prohibition was failing at a cost the country should not bear. Buckley, the founding father of the modern conservative movement, was not a man given to frivolous ideas. When he said the drug war had been lost, many conservatives paid attention, and a few were furious. The symposium remains the most quoted statement of the case that a conservative can believe in limited government and still want to end prohibition.

The case against legalization: order, family and the common good

Now the other side, in words its defenders would accept.

The conservative who opposes legalization is not usually an enthusiast for jail. He is making a claim about what a free society needs in order to stay free. The argument has four parts as well.

1. Liberty needs virtue. The Founders did not believe a republic could survive on laws alone. John Adams wrote in 1798 that the Constitution was made only for a moral and religious people and was wholly inadequate to the government of any other. A culture of self-command is the foundation of self-government, and drugs eat at self-command. A person in the grip of addiction is not exercising liberty. He has lost it.
2. Use is not a private act. The libertarian picture of the lone adult harming only himself is rarely how addiction works. It runs through families, employers, children and the public purse. A parent who disappears into a habit takes a child with him. Public order and the family are the oldest concerns of conservatism, and drug use touches both.
3. Legal means more. Availability, price and social approval all shape consumption. Alcohol and tobacco are legal and kill very large numbers of Americans, a fact the legalizer reads as proof that prohibition is unnecessary and the prohibitionist reads as proof that legal products do vast damage. When a drug becomes a respectable commodity with advertising and a lobby, someone has an incentive to promote its use.
4. The law teaches. Criminal law does more than punish. It says what a society considers acceptable. Removing the prohibition says something to the young about what is expected of them.

This tradition also has a landmark. William Bennett was named the first Director of the Office of National Drug Control Policy, the so-called drug czar, in 1989, under President George H.W. Bush, and he argued for a firm stance, treating drug use as a moral problem as well as a public health one. His view, shared by many on the right, was that a society that stops saying no has stopped saying anything.

The federalism argument

Here is where the two camps can agree more than they expect.

The Constitution's text gives Congress the power to regulate commerce "among the several States," and it says in the Tenth Amendment that the powers not delegated to the United States are reserved to the states or the people. Alcohol Prohibition took a constitutional amendment. The ban on narcotics took only a statute, and the Supreme Court later held in Gonzales v. Raich (2005) that Congress could reach even homegrown marijuana under the Commerce Clause, a decision that divided the conservative justices. If you want that story, it is told at Gonzales v. Raich and the Marijuana Case That Split Conservative Justices.

A conservative who cares about federalism can therefore hold two positions at once. He can believe drug use is harmful and that the states are entitled to forbid it, and he can believe that the federal government has stretched its power beyond its enumerated limits. That is the position of someone who says: let each state decide. A state may keep prohibition. A state may try another model. The nation will learn from watching both, which is exactly what laboratories of democracy are for.

States have in fact run the experiment. Colorado and Washington legalized recreational marijuana through ballot measures in 2012, and many states have followed in different forms. Oregon went further and decriminalized possession of hard drugs by ballot measure in 2020, then reversed course through its legislature in 2024. That story is worth reading closely, and it is told at Oregon Decriminalized Hard Drugs in 2020 and Reversed Course in 2024. The point is that conservatives no longer have to argue in the abstract. We have results, partial and contested but real.

The steelman of each side, side by side

Here is each camp's best answer to the other.

The legalizer to the prohibitionist: "You say the law teaches. What it taught was that a fifteen-year-old can be arrested for what a forty-year-old does at a cocktail party. You say liberty needs virtue, but virtue cannot be compelled, and a person who stays sober because he fears arrest has not become virtuous. He has become cautious. Meanwhile your policy funds the cartels."

The prohibitionist to the legalizer: "You say the black market causes the violence. Then explain why legal alcohol and tobacco, which are fully regulated, still devastate families. You say people have a right to their own bodies. Then explain why the right extends to the family that must bury him and the taxpayer who must treat him. And a liberty that ends in dependence is not the liberty the Founders meant."

Each of those answers is serious. Neither one can be waved away. And notice that they do not exhaust the field. There are policies in between: treatment courts that offer a person a choice between supervision and a cell, civil rather than criminal penalties for possession, tough penalties on traffickers combined with mercy for users, and different rules for different substances. Few thoughtful people think the choice is only a war or a free-for-all.

Where the evidence points

A fair writer must say what the evidence supports, and where it runs out.

On the marijuana question, the experience since 2012 is genuinely mixed. Legalization has produced tax revenue and has moved a market out of the shadows. It has also produced a commercial industry with an interest in more use, and questions about potency, youth access and impaired driving that are still being studied. I will not pretend the data are settled, and I would be suspicious of anyone who does. If you want a sound conservative position, it is this: the jury is out, the states are the right place to run the trial, and the federal government should not use the Commerce Clause as a hammer where the Constitution gave it a scalpel.

On hard drugs, the lesson of the past decade, and of Oregon in particular, is that decriminalization without strong treatment capacity and without a consequence for refusal tends to look like surrender. The state's own legislature reversed course within four years, and the lesson was not lost on either camp. The prohibitionist learned that arrest alone does not cure addiction. The legalizer learned that removing the penalty without building the alternative creates public disorder that voters will not tolerate. Both lessons are worth keeping.

On the question of the cartels, the evidence is plain that demand drives the trade, that supply interdiction has never durably cut the flow, and that the human cost to border communities and to the countries that host the cartels is severe. That is an argument for treating trafficking as the serious crime it is, and for going after the organizations rather than the user. It is, in other words, an argument about where to point the law.

Where I come down

You are owed a verdict, so here it is, and I will mark which parts are fact and which are values.

Fact: The federal drug war as practiced for fifty years has not eliminated supply or use, and it has carried real costs. Fact: Legal substances can and do cause great harm. Fact: The states have begun to supply real data, and the data are mixed. Value: A free society depends on virtue, and a law that gives up on that has given up on something important. Value: A free society also depends on limits on the state, and a government that treats every adult as a ward is not the one the Founders designed.

Given those, my view is this. Conservatives should refuse the false choice. We should defend the principle that drug use is destructive and that society is entitled to say so in law, especially for dangerous drugs and for sales to the young. We should insist that the states, not Washington, decide how to balance liberty and order in their own borders. And we should demand that every policy be judged by whether it protects families, restores people to work and keeps public spaces safe, not by whether it feels tough or feels free.

That is a less satisfying answer than "legalize it" or "lock them up." It is also closer to the truth, and it respects the thing both camps care about: a country of capable, responsible, self-governing citizens. If you want to see how that tension plays out when someone dies from a sale, read Should a Dealer Who Sells a Fatal Dose Be Charged With Homicide, and for the long history of the opposite reform instinct, read Mandatory Minimums Divide Conservatives, and Both Sides Have a Point. For what happens when treatment replaces cells, see Texas Chose Treatment Beds Over New Prisons in 2007, and Here Is Why. The Constitution page on this site will let you check the Tenth Amendment for yourself.

The case in brief

1. Prohibition, decriminalization and legalization are three different policies, and "drugs" is not one thing.
2. The liberty case rests on self-ownership, the failures of prohibition and the limits of federal power, and it has a serious pedigree in Buckley's 1996 symposium.
3. The order case rests on virtue, the family and the lessons the law teaches, and it has a serious pedigree in William Bennett's tenure as the first drug czar from 1989.
4. Federalism lets conservatives on both sides agree that the states should run the experiments, and the results so far, Oregon's included, are mixed and instructive.
5. A conservative should judge any policy by whether it protects families, restores work and keeps public spaces safe, and should refuse the false choice between a war and a free-for-all.

What you can do: read your own state's controlled-substance statute on your legislature's website, then ask your state representative which part of it they would change and why.