And a lot to do with access to birth control.
About 46 million women and girls have gained access to contraceptives in the world's lowest-income countries over the past six years, according to a report.
Other than the right to vote, the US Constitution doesn't guarantee equal rights for men and women.
It was the second time Pence used his role as the chamber's president to end a deadlock. He was called to the capitol earlier to carry the resolution through a procedural vote.