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LAS VEGAS, NV - JULY 19:  Democratic presidential candidate Hillary Clinton speaks at the American Federation of State, County and Municipal Employees (AFSCME) 42nd International Convention at the Las Vegas Convention Center on July 19, 2016 in Las Vegas, Nevada. Clinton continues to campaign for the general election in November while the Republicans hold their national convention.  (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - JULY 19:  Democratic presidential candidate Hillary Clinton speaks at the American Federation of State, County and Municipal Employees (AFSCME) 42nd International Convention at the Las Vegas Convention Center on July 19, 2016 in Las Vegas, Nevada. Clinton continues to campaign for the general election in November while the Republicans hold their national convention.  (Photo by Ethan Miller/Getty Images)

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    Hillary Clinton officially nominated for president

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Hillary Clinton officially nominated for president

At the Democratic National Convention in Philadelphia, Hillary Clinton is officially nominated for president by Maryland Sen. Barbara Mikulski and seconded by Georgia Rep. John Lewis.

Hillary Clinton officially nominated for president

At the Democratic National Convention in Philadelphia, Hillary Clinton is officially nominated for president by Maryland Sen. Barbara Mikulski and seconded by Georgia Rep. John Lewis.