Despite some problems voters faced at the polls and Bernie Sanders' pledge to stay in the race, for Hillary Clinton and her supporters, it's a moment to pause and take note that history has been made.
With last night's achievement, Clinton is the presumptive Democratic nominee, making her the first woman in American history to claim the nomination of a major political party.
For more on this historic moment, Nancy L. Cohen, author of "Breakthrough: The Making of America's First Female President" joined the show.
To hear the full interview, click the blue play button above.
For more on Nancy's book, please find the excerpt below.