Disunity in Philadelphia has been fueled by the leak of Democratic National Committee emails allegedly obtained by Russian hackers. Today, at a press conference that upstaged Democratic Convention-coverage for more than an hour, Donald Trump reminded reporters of Hillary Clinton's State Department emails — some of which are still missing -- and connected them to the Russians. The Clinton campaign is accusing him of espionage. Amy Sullivan, who reports for Yahoo News, has more on the story.
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