Historians Elaine Weiss and Martha S. Jones join CBS News correspondent Meg Oliver. They discuss how three generations had to fight in order for the 19th Amendment to become law. Weiss, an award-winning journalist and author of "The Woman's Hour: The Great Fight to Win the Vote," explains how the hope of the suffrages came down to a 24-year-old state representative in Tennessee. While the passage of the 19th Amendment technically gave 27 million women the right to vote in the 1920 presidential election, Jones explains how the fight for Black women continued for decades. Jones is a professor of history at Johns Hopkins University and author of "Vanguard: How Black Women Broke Barriers, Won the Vote and Insisted on Equality for All."