(NBC News) The U.S. Supreme Court heard arguments over same-sex marriage Tuesday.
Justices appeared divided in their questioning of attorneys representing states defending bans of same-sex unions.
“The fundamental core of the institution is the opposite-sex relationship,” Chief Justice John Roberts said.
A lawyer for Michigan, one of the states that bans gay marriage, insisted if marriage is just about love and not producing children, more children will be born out of wedlock.
Justice Anthony Kennedy, considered a swing vote by many observers, did not appear to be moved by that argument.
“That only opposite sex couples can have a bonding with the child, that was a very interesting but just a wrong premise,” Kennedy said.
Still, Kennedy pointed out that for centuries marriage was understood as between a man and a woman and sked whether the public and scholars need more time to debate changes.
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