When President Barack Obama talks about finding common ground on abortion, as he did during his commencement address at Notre Dame over the weekend, he’s not really talking about abortion at all. The president is pro-choice, which means that he believes that women should have access to legal abortions and that Roe v. Wade should remain the law of the land. What he’s really talking about is sex—specifically, who should have it, under what circumstances, and who should bear responsibility for the (desired or undesired) consequences. Abortions—to state the obvious—result from sex. To reduce the number of women seeking abortion, domestic policy wonks need to find common ground on sex.