WASHINGTON — Linda Massey opposes gay marriage. But she was incensed last summer to see that Kim Davis, a Kentucky county clerk, was refusing to issue marriage licenses to gay couples.

“If the government says you have to give out those marriage licenses, and you get paid to do it, you do it,” says the 64-year-old retiree from Lewiston, Mich. “That woman,” she said of Davis, “should be out of a job.”

Americans like Massey are at the heart of a shift in public opinion, an Associated Press-GfK poll found. For the first time, most Americans expect government officials to issue marriage licenses to same-sex couples, even over religious objections.

It’s partly a matter of expecting public servants to do their jobs. But more broadly, the issue touches on a familiar dispute over which constitutional value trumps which: religious freedom, or equality under the law?

The question in recent months has entangled leaders with political sway, among them Pope Francis and the 2016 presidential contenders.

Where Davis’s answer was the First Amendment’s protection of religious freedom a majority of respondents don’t buy that argument when it comes to public officials issuing marriage licenses.