Brian Brown, president of the National Organization for Marriage (NOM), has called marriage equality “a lie” about what it means to be a human being that cannot stand.

Appearing on Tamara Scott's radio program last week, Brown said that a Supreme Court ruling striking down state bans on gay marriage would be “illegitimate.”

Brown compared such a ruling to other “horrible” Supreme Court decisions, including rulings on slavery and segregation.

“It may be a generation or two down the line, but this lie about what it means to be a human being cannot stand. It cannot stand,” Brown said. “And just because the Supreme Court says it's so, it doesn't make it so. The Supreme Court has had horrible decisions in the past, horrible decisions like the Dred Scott decision, Plessy v. Ferguson, the Fugitive Slave Act, Roe v. Wade. Just because the Supreme Court said it was so didn’t make it so, and there was an obligation for people living in those times to stand up and say 'no this is wrong' and to fight with every ounce of their being for the truth.”

Alabama Supreme Court Chief Justice Roy S. Moore recently made similar arguments in defending his attempt to block gay couples from marrying in Alabama.