I've seen some people saying, in the aftermath of today's
decision in Lawrence v. Texas, that the Court's
decision has somehow foreclosed a constitutional argument for gay
marriage, because of the path it took to reaching its result. I
think this is wrong, but explaining why will require a mini-lesson
in constitutional law. (U.S. lawyers can probably skip this
post.)
The path the Court was offered and didn't take is the
one that most people thought was more likely: the equal protection
argument. The Fourteenth Amendment says that no State shall "deny
to any person within its jurisdiction the equal protection of the
laws." The argument was that because Texas prohibited sodomy
between persons of the same sex, and not persons of the opposite
sex, that it denied equal protection of the laws.
I've seen people lamenting that the Court didn't take this path,
because accepting that argument could lead towards gay marriage,
where its current opinion doesn't. As a corollary, people have
pointed out that accepting this argument would be a bigger
extension of the Court's jurisprudence.
I think both of these are wrong, or at least not necessarily
true. Taking them in reverse order:
In the
post I linked to earlier, Professor Balkin states that by not
using the equal protection argument, "the Court does not have to
hold that gays are a suspect class or that classifications based on
sexual orientation are entitled to heightened scrutiny." Which is
true. But I think the Court could have invalidated the Texas
statute without doing either of those. (Of course, Professor Balkin
didn't say it had to do either, but I think a lot of people are
assuming that.)
Equal protection jurisprudence is a three-tiered affair. To
oversimplify slightly, classifications based on race are subject to
strict scrutiny; gender, intermediate scrutiny; everything else,
rational basis review. The tougher the scrutiny, the stronger the
government interest behind the classification has to be. When the
Court struck down Colorado's Amendment 2 (which said, you can't
pass of any laws or ordinances that prohibit discrimination on the
basis of sexual orientation) in Romer v. Evans, it
said it was doing it under rational basis review. Many hoped that
the Court would use this case to move sexual orientation into the
same tier of scrutiny as gender.
Justice O'Connor's opinion, which concurred only in the result,
would have invalidated the statute on rational basis review only,
by extending Romer to hold that either moral
disapproval or animus could never be a rational basis for a law.
Justice O'Connor felt that the Texas law was only motivated by one
or both of those, thus making it unconstitutional. (Note that
O'Connor joined the Bowers majority opinion.) I think
this would have been an entirely plausible majority opinion, and
probably the one most people expected to see. So invalidating
Texas's law could have been done on rational basis review, and a
decision on equal protection grounds wouldn't necessarily have been
a big step past Romer. And I think it's a tossup
whether prohibitions on gay marriage would pass rational basis
scrutiny at the Court.
The path the Court did take is what's known as the substantive
due process argument. The Fourteenth Amendment says in part that no
State shall "deprive any person of life, liberty, or property,
without due process of law." The Court has defined "liberty" to
include certain rights clustered around ideas of family, sexuality,
reproduction, and privacy; these get labeled "fundamental rights."
So, for instance, there's a fundamental right to direct the raising
of your children, to access to contraception, and to abortion.
Obviously these rights are subject to government regulation, but
the government has a heavier burden to justify that regulation.
After today, there is a fundamental right to engage in private,
consensual sexual conduct, no matter what gender your partner is.
This stems from the recognition that such conduct "can be but one
element in a personal bond that is more enduring" (slip opinion at
6) and that the ability to choose these personal bonds is central
to the Fourteenth Amendment's liberty (slip opinion at 13).
Here's the thing. The Court has previously established that
the right to marriage is also a fundamental right (in
Zablocki v. Redhail, among others). And the
Court's rationale for protecting private sexual conduct applies to
marriage just as well—personal bonds, yes? So I think it's a
small logical leap to find that marriage is a
fundamental right, no matter what gender your would-be spouse is.
(Obviously it's a bigger political and social leap for the Court.)
Then we're back at the question of whether the government's
interest in regulating that right is sufficient; and for
fundamental rights, then the interest has to be quite strong: a
compelling interest, limited by narrowly-drawn laws.
So, the lack of an equal protection argument doesn't mean that
the constitutional argument for gay marriage is dead. On the
contrary: while the standards of review tend to be squishy in
practice (many people think Romer is not actually
rational basis review, for instance), on its face, fundamental
rights scrutiny is tougher than intermediate scrutiny, which is
almost certainly the highest that sexual orientation would
receive.
Do I expect to see the Supreme Court hold that gay marriage is
constitutionally required? Yes. Do I expect to see it soon? Not
necessarily. I don't know what rationale will be used, but it could
be either equal protection or substantive due process;
Lawrence v. Texas doesn't rule out either.
[Edited to fix one case name and add another.]