Nearly half of Republican primary voters in New Hampshire, which holds the first presidential primary, say gay couples should be allowed to marry in every state.

According to a Purple Insights poll conducted May 2-6, 49 percent of likely Republican primary voters “favor allowing gay and lesbian couples to enter into same-sex marriages in every state in the U.S.,” while 39 percent remain opposed. Twelve percent said that they were not sure.

“I think it's just a matter of time until it's a part of our culture,” said Nathan Rigoli, a 43-year-old Republican from Merrimack. “So, it won't even be an issue probably in the next election. Either the Supreme Court will decide it for us and it will be a moot point, or eventually all the states will pass it.”

A case before the Supreme Court challenging restrictive marriage bans in four states is expected to be decided next month.

None of the six declared candidates for the Republican presidential nomination support marriage equality.

Support was higher among likely Democratic primary voters, 85 percent of whom said they want to see gay couples marry in all 50 states. Only 8 percent said that they oppose nationwide marriage equality.

Declared Democratic candidates Hillary Clinton, the former secretary of state, and Vermont Senator Bernie Sanders support equal marriage rights.