Why aren't more women in office? Even within parties, there's big disagreement

Female Senate Democrats call for raising the minimum wage for women.
Former U.S. Sen. Barabara Mikulski (D-MD), U.S. Sen. Debbie Stabenow (D-MI), U.S. Sen. Elizabeth Warren (D-MA), U.S. Sen. Tammy Baldwin (D-WI) and U.S. Sen. Amy Klobuchar (D-MN) and other women Democratic senators host a news conference at the U.S. Capitol January 30, 2014 on raising the minimum wage.
Chip Somodevilla | Getty Images 2014