WASHINGTON - Three U.S. states and three countries have approved same-sex unions just in the two months since the Supreme Court heard arguments over gay marriage.
That's raising questions about how the developments might affect the justices' consideration of the issue.
In particular, close observers on both sides of the gay marriage divide are especially wondering whether Justice Anthony Kennedy's view, which is likely to be decisive.
In earlier cases on gay rights and the death penalty, Kennedy has cited the importance of changing practices, both nationally and around the world.
The court is expected to rule by late June in two cases involving same-sex marriage.