Voting gender gap in the United States
A gender gap in voting typically refers to the difference in the percentage of men and women who vote for a particular candidate. It is calculated by subtracting the percentage of women supporting a candidate from the percentage of men supporting a candidate (e.g., if 55 percent of men support a candidate and 44 percent of women support the same candidate, there is an 11-point gender gap).
Source: Wikipedia — Voting gender gap in the United States (CC BY-SA 4.0)