7 things to know about the DNC email leaks

First came the hack, then the leak. Now, the Clinton and Trump campaigns are fighting over Russia's role in the release of thousands of internal Democratic National Committee emails.At least one thing is clear: The email uproar is an unwelcome distraction at the launch of the Democratic National Convention, inflaming the rift between supporters of Hillary Clinton and primary rival Bernie Sanders just when the party was hoping to close it.As the Philadelphia convention got underway Monday, develo