Even as one of their own vies to be the first female president, even with abortion rights high on the list of campaign issues, even after more than a century of suffrage, some women still look to their husbands and other trusted men before casting their ballots.

The phenomenon is not new, but it could make the difference in a presidential race that is projected to be unusually tight. And because polls predict what could be a record-setting gender gap—with the majority of women voting for Harris and most men backing former President Donald Trump—the possibility that even a small number of women will vote like their men has Harris supporters nervous.