Bishop Harry Jackson has warned that polygamy would follow a Supreme Court ruling striking down gay marriage bans.

Jackson, a minister at the Hope Christian Church in Beltsville, Maryland, came to prominence fighting against the District of Columbia's gay marriage law and last year's effort to pass a similar law in Maryland.

Appearing on the Christian Broadcasting Company's CBN Newswatch to discuss this week's upcoming related cases before the Supreme Court, Jackson said he believes conservatives could win at the Supreme Court.

“I think we can win it,” Jackson said. “I think the real issue is the religious liberty issue and the issue of whether we can practice marriage as we believe it on an ongoing basis. Remember that if same-sex marriage is allowed to be mandated by fiat, if you will, at the Supreme Court level for all of America, then, right behind it, polygamy and many other forms of marriage will automatically sweep the land within just a matter of a few years.” (The video is embedded on this page. Visit our video library for more videos.)