Presidential candidate and former Arkansas governor Mike Huckabee. (Staci Vandagriff/Jonesboro Sun via AP)

Republican presidential candidate Mike Huckabee said in an interview broadcast Sunday that county clerks who personally object to granting same-sex marriage licenses should not be required to do so.

"If they have a conscientious objection, I think they should be excused," the former Arkansas governor said on ABC's "This Week with George Stephanopoulos."

Huckabee, a staunch social conservative, has been among the most vocal critics of the Supreme Court's ruling that gay couples should be allowed to marry nationwide.

"I'm not sure that every governor and every attorney general should just say, 'Well, it's the law of the land,' because there's no enabling legislation," Huckabee added.

Asked whether he would refuse to enforce the court's decision as president, Huckabee said that would depend on what lawmakers on Capitol Hill decide to do.

"When the Congress provides enabling legislation and the people's representatives vote and it gets to my desk, then we'll consider it," he said.