“It’s settled law in Massachusetts. Quite frankly, everybody’s moved on,” said Brown on the March 19 broadcast of “Piers Morgan Tonight.”

In the past, Brown has said that he opposes marriage equality, but he has never made it a campaign theme. The Republican split with his party in supporting President Obama’s repeal of the Pentagon’s Don’t Ask, Don’t Tell (DADT) policy.

“We’ve moved on. I encourage everyone else to move on,” Brown told the CNN host. “It should be decided state by state basis. I’m focusing on those other things.”

Democrats say that Brown’s record on LGBT rights leaves much to be desired. They point to his opposition of non-discrimination legislation for LGBT persons, and his refusal to take part in an anti-bullying video.

“If Scott Brown thinks marriage equality is settled law in Massachusetts, he should talk to the thousands of gay couples whose marriages aren’t recognized by the federal government,” said Kevin Franck, spokesman for the Massachusetts Democratic Party.

Brown is in a re-election race for his U.S. Senate seat, the one formerly held by the late Ted Kennedy.

His presumed Democratic opponent, Harvard law professor and former U.S. Treasury Department official Elizabeth Warren, has been endorsed by the Human Rights Campaign.