The gender gap gets a lot more ink, but the marriage gap is bigger. It’s also changing:
While Donald Trump did better among male voters than female ones by 11 points, his support among married voters was 15 points higher than it was with unmarried voters. Married America voted for Trump by a solid margin (52 to 44 percent), while single America voted for Hillary Clinton in a landslide (55 to 37 percent).
These patterns have held for every presidential election since 1984, when exit pollsters started differentiating between married and unmarried voters.