Massachusetts Senator Scott Brown has described gay marriage in Massachusetts as “settled law.”

Gay and lesbian couples started marrying on May 17, 2004 after the state Supreme Court ruled that the state's ban was unconstitutional.

The debate heated up for a couple of years as opponents attempted to overrule the court with a constitutional amendment defining marriage as a heterosexual union.

Appearing Monday on CNN's Piers Morgan Tonight, Brown told host Piers Morgan that gay marriage was “settled law in Massachusetts.”

“Quite frankly, everybody's moved on,” Brown said.

“Do people care that much?” Morgan asked. “I mean, those who argue against it say this is the end of civilization as we know it.”

“Certainly some people care,” Brown answered. “And others have moved on. But they're really concerned about how they're going to pay their mortgage. Both people, gay and straight, they're wondering about how they're going to pay their mortgage, are their kids and families going to come home safe as they travel around the country and the world.”

“It's debt, deficit, taxes, spending, jobs, national security. We've moved on. I encourage everyone else to move on. It should be decided [on a] state by state basis. I'm focusing on those other things.” (The video is embedded in the right panel of this page. Visit our video library for more videos.)