The full court opinion is here:
Supreme Court Affirms Constitutionality of Gay Marriage
The court’s historic 5-4 ruling cements the legality of same-sex unions nationwide.
In part the opinion of Justice Kennedy:
“The nature of injustice is that we may not always see it in our own times,” Kennedy wrote in a 34-page opinion. “The generations that wrote and ratified the Bill of Rights and the Fourteenth Amendment did not presume to know the extent of freedom in all of its dimensions, and so they entrusted to future generations a charter protecting the right of all persons to enjoy liberty as we learn its meaning.”