Substantive DP & Fundamental Rights — Constitutional Law

A city ordinance says a single-family home may house one family, and defines family as people related by blood, marriage, or adoption. A grandmother there shares her house with her two young grandsons, who are cousins rather than brothers. The city cites her and orders her to break up the household. Down the street, a group of unrelated friends gets the same citation. One citation is unconstitutional. The other is fine.

The grandmother wins. The friends lose. Same ordinance, same city, opposite answers. The only thing that changed is whether the people are related. That is this whole topic in one image. By the end of this episode you will know which rights get the demanding standard, which get the toothless one, and the one that gets neither.

Here is the route. First where these rights live, the two Due Process Clauses and incorporation. Then the engine, the two steps that decide almost everything. Then the four rights. Privacy, voting, travel, and bearing arms. And the special tracks, because two of these no longer work the way older outlines say.

Start with where these rights live. There are two Due Process Clauses. The Fifth restrains the federal government. The Fourteenth restrains the states, and their cities and counties. They protect the same liberty, so the analysis is identical. Only the defendant changes.

Incorporation lives here too. Through the Fourteenth Amendment the Court has selectively incorporated nearly all of the Bill of Rights against the states. The right to bear arms was incorporated in 2010, which is why the Second Amendment sits in a substantive due process outline.

Now the engine, and it is only two steps. Step one. Is the government burdening a fundamental right? Step two. Apply the matching standard. Burden one and courts apply strict scrutiny. The law is presumptively unconstitutional, and the government must prove it is necessary to a compelling interest and narrowly tailored.

No fundamental right, and it is rational basis. The law is presumptively valid, and the challenger must prove no rational relation to any legitimate interest. Any conceivable goal will do, which is why economic regulation virtually always survives. Notice who carries the burden. That flip is half the answer.

So which rights are fundamental? The Court uses a historically grounded test. A claimed right is fundamental only if it is deeply rooted in the Nation's history and tradition, and implicit in the concept of ordered liberty. And courts describe the right narrowly before asking whether history supports it.

Now the rights. First, privacy, which despite the label really means personal autonomy. The freedom to make intimate life choices without the government dictating the answer. The recognized list is precise. Contraception. Marriage. Procreation. Family living. Child-rearing and education. Refusing medical treatment. Private consensual intimacy.

Take marriage. The freedom to marry the person of one's choice is fundamental, and applies equally to same-sex couples. A state must license and recognize them on the same terms. Direct and substantial barriers get strict scrutiny. A law barring people behind on child support from marrying falls.

But evenhanded regulation of the process is not a substantial barrier. Columbia may charge a $30 license fee, set a minimum marrying age, and require a three-day waiting period. All fine. Quick challenge. Columbia forbids marriage to anyone who owes back taxes. Process, or substantial barrier? Substantial barrier. It falls.

Parental rights next. Fit parents have a fundamental right to direct the upbringing of their children, including educating them in a private or religious school. Courts must give special weight to a fit parent's decisions. So a statute letting a judge order visitation whenever they think it would help the child, with no deference to a fit parent, is unconstitutional.

Which brings us back to the grandmother. The state cannot use zoning to stop an extended family from living together. She has a protected right to share her home with her grandchildren, even cousins. Fundamental right, strict scrutiny, and controlling congestion will not carry it.

But that protection runs to family. There is no fundamental right for unrelated people to live together, so the same ordinance applied to the friends down the street gets rational basis, and it stands. Watch that related-versus-unrelated line. It flips the standard.

Medical care. A competent adult has a protected liberty interest in refusing treatment, including life-sustaining treatment like a feeding tube. Because the patient may be unconscious by then, a state may insist on clear and convincing evidence of that patient's own prior wishes.

But the right stops short of having someone actively help you die. There is no fundamental right to physician-assisted suicide, so a ban gets rational basis and stands. Note the asymmetry. Refusing treatment is protected. Obtaining lethal assistance is not.

Now the big update, and any outline older than a few years gets this wrong. For nearly fifty years abortion was part of this privacy cluster. In 2022 the Supreme Court overruled its earlier abortion decisions. The Constitution confers no right to abortion, because the asserted right is not deeply rooted in history and tradition.

So abortion is now reviewed under rational basis. Not strict scrutiny, and not the old undue burden and viability framework, which is gone. A state may restrict or even prohibit abortion if the law is rationally related to a legitimate interest.

Two cautions. Any study aid still reciting the viability line is out of date. And the same decision stressed it did not disturb the other privacy rights. For 2026, treat contraception, marriage, and consensual intimacy as still fundamental.

Second right. Voting, fundamental because it is the right that guards every other right. Laws that deny or seriously burden the franchise, or make one vote count for less than another, face strict scrutiny. But neutral qualifications are fine. A minimum age of 18, citizenship, and bona fide residence. Those define the electorate.

Durational residency requirements burden both voting and travel, so they get strict scrutiny. A full year is too long. A registration cutoff of roughly 30 to 50 days is upheld as necessary to run the election. Poll taxes are unconstitutional in every election, because wealth has no bearing on the vote. The Twenty-Fourth Amendment independently bans them in federal elections.

Property or taxpayer requirements to vote are generally invalid, with a narrow exception for special-purpose districts like irrigation districts. And a state cannot force a party to open its primary to outsiders, because parties have First Amendment associational rights.

It is not enough to let everyone cast a ballot. Each ballot must carry roughly equal weight. Under one person, one vote, districts must contain substantially equal populations. Congressional districts must be almost mathematically equal. State and local districts need only be substantially equal, with a deviation under about 10% valid.

Draw one state house district with 90,000 residents and another with 150,000, and the map fails.

Then redistricting splits onto two tracks, and the exam loves to see whether you can tell them apart. Racial gerrymandering, drawing lines with race as the predominant factor, triggers strict scrutiny. The map falls unless narrowly tailored to a compelling interest, such as complying with the Voting Rights Act.

Partisan gerrymandering is the opposite. A claim that a map was rigged to favor one party is a nonjusticiable political question. Federal courts will not hear it. Race is reviewable. Pure party is not.

Third right. Travel, which is really a right to migrate. To leave one state, resettle in another, and be welcomed there as an equal citizen. The classic violation is a durational residency requirement, making newcomers wait for a benefit longtime residents get at once. It penalizes recent movers, so it gets strict scrutiny and generally fails.

No making new arrivals wait a year for welfare, for non-emergency medical care, or to vote. But distinguish a bona fide residency requirement, simply requiring that you actually live there now. Perfectly valid, rational basis. A few durational rules survive on administrative grounds, like a year before filing for divorce. International travel is only a liberty interest, restrictable for national security.

Fourth right, and the one that works differently. The Second Amendment protects an individual right, not one tied to militia service, with self-defense in the home at its core. It reaches outside the home too. A state may adopt an objective shall-issue permit system for public carry, but it may not require proof of special need.

And here is the point examiners love, because it recently changed. Courts do not analyze gun laws with the scrutiny tiers. No strict scrutiny, no intermediate, no interest balancing. The test is text and history. First, does the Amendment's plain text cover the conduct? If yes, it is presumptively protected.

Second, the burden shifts to the government to show the law is consistent with the Nation's historical tradition of firearm regulation. Not an identical historical twin. A relevantly similar analogue, judged by how and why it burdens the right.

And the right is not unlimited. Bans on possession by felons and the mentally ill survive, and so do laws barring guns in sensitive places like schools. So does temporarily disarming a person a court finds to pose a credible threat to someone's safety.

A word on authorities, because this episode named no case, and that is deliberate. This topic is unstarred, which means the exam may hand you the governing standard or even a statute. Your job is recognition and application, not reciting case names. The authorities that matter are the two Due Process Clauses and the incorporation doctrine.

If you keep only three things, keep these. The two-step engine, because the standard decides the case before you reach the merits. The fundamental-rights test, deeply rooted in history and tradition and implicit in ordered liberty, because that sets the standard. And the special tracks. Economic regulation and abortion get rational basis. Guns get text and history.

Now the traps. One. Abortion. Do not apply the old strict scrutiny, undue burden, or viability framework. Current law is rational basis. Two. Economic liberty. Do not treat a burden on a business, job, or contract as a fundamental-rights problem. Three. Related versus unrelated. Only family members have a fundamental right to live together. Zoning against unrelated housemates gets rational basis.

Four. Residency. Distinguish a valid bona fide, present residency rule from an invalid durational one that makes newcomers wait for benefits. Five. Gerrymandering. Racial is justiciable and strictly scrutinized. Partisan is a nonjusticiable political question. Six. Poll taxes. The Twenty-Fourth Amendment bans them only in federal elections. The state ban comes from the fundamental right to vote.

And seven. Assisted suicide. There is a protected liberty to refuse treatment, but no fundamental right to have a physician help you die.

Time for the quick check, and this one comes straight from the BARGO question bank. A state bans a category of semiautomatic firearms it labels assault weapons. The trial court proposes to decide the statute's validity by asking whether the ban is substantially related to the state's important interest in reducing gun violence. That is, intermediate scrutiny.

Is that approach correct? Option one. Yes, because firearm regulations get the same intermediate scrutiny applied to gender classifications. Option two. No, because the court must instead ask whether the ban fits the Nation's historical tradition of firearm regulation. Option three. No, because all firearm regulations get strict scrutiny as burdens on a fundamental right. Pause here if you want a moment.

The answer is option two. Second Amendment claims are not analyzed with the familiar scrutiny tiers or with interest balancing. Once the plain text covers the conduct, the government must show the regulation is consistent with the Nation's historical tradition of firearm regulation.

Option one endorses the very means-end balancing the Court has rejected. Option three is the interesting one, because it reaches the right conclusion. The trial court is wrong. But it is wrong for the same reason as option one. It picks a scrutiny tier, and the analysis is text and history. The question tests methodology, not whether this ban survives. There are thirty-plus more questions on this topic alone, each option explained like that.

Five things to take away. One. The two-step engine. Name the right narrowly, decide whether it is fundamental, then apply the matching standard. Strict scrutiny puts the burden on the government. Rational basis puts it on the challenger, who almost always loses. Two. Deeply rooted in history, and implicit in ordered liberty.

Three. The privacy list is precise. Contraception, marriage, procreation, family living, child-rearing, refusing treatment, private intimacy. Abortion is off that list and gets rational basis. Four. Voting and travel are fundamental, but neutral qualifications and bona fide residency are fine. Only durational waits trigger strict scrutiny.

Five. Guns get neither tier. Text and history, and the government must find a relevantly similar historical analogue. Which is why the grandmother keeps her grandsons, and the friends down the street do not have a case. Same ordinance, different standard. Next time, Equal Protection.

Practice this topic with more than 2,900 exam-style questions, free to start, at nextgenbargo.com. This episode is for education and exam preparation only, not legal advice, and we are not affiliated with or endorsed by the NCBE or any bar examining authority.