Men and women have been voting differently in presidential elections for decades.
But could the gender gap be the deciding factor in this year's razor-thin race between Vice President Kamala Harris and former President Donald Trump?
The final ABC News/Ipsos poll before Election Day, released on Sunday, found the gender gap among all likely voters to be 16 points. Harris had a 11-point advantage among women, 53% to 42%, while Trump had a 5-point advantage among men, 50% to 45%.
A 538 analysis of national polling crosstabs in October from its most highly-rated pollsters found the average gender gap was slightly wider: 10 points for Harris among women and 9 points for Trump among men.
That is on par with historical norms. The gender gap has averaged 19 points in presidential exit polls since 1996.