Hillary Clinton will be the first woman to top the presidential ticket of a major U.S. political party, having captured commitments from the number of delegates needed to become the Democratic Party's presumptive nominee.
It was a victory that arrived Monday - nearly eight years to the day after she conceded her first White House campaign to Barack Obama and famously noted her inability to "shatter that highest, hardest glass ceiling."
Campaigning this time as the loyal successor to the nation's first black president, Clinton held off a surprisingly strong challenge from Vermont Sen. Bernie Sanders to break through.
Clinton reached the 2,383 delegates needed to become the presumptive nominee with a decisive victory in Puerto Rico and a burst of last-minute support from party insiders known as superdelegates.
Bernie Sanders' campaign says Hillary Clinton's nomination as the Democratic Party's presidential pick is dependent on superdelegates who can still change their minds between now and the July convention.
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