Research on women’s candidate emergence identifies a substantial gender gap in political ambition that is well established by the time women and men enter the professions from which political candidates ten to emerge. More specifically, women are one-third less likely than men—even when they are matched professionally, educationally, and politically—ever to have considered running for office. Yet no empirical research has examined thoroughly the origins of the gender gap in political ambition or the relationship between early socialization and interest in running for office. Based on a new national survey of 4,000 high school and college students, we identify the initial causes of the gender gap in political ambition, which is a prerequisite to closing it. Ultimately, our results speak to the gender dynamics of powerful socializing agents, and allow for an assessment of the likelihood that our political institutions will reach gender parity. Speaker: Jennifer Lawless, Associate Professor, Department of Government, American University