Researchers have concluded that the Democratic National Committee was breached by two Russian intelligence agencies, and metadata from the released emails suggests that the documents passed through Russian computers.
This article brought to light the mysterious reason as to how such information was to impact the elections. I would consider the fact that, as stated, the leaks produced information that embarrassed Democrats and alienated Sanders’s followers from Clinton’s.
This can undermine any respect people have had for the Democratic Party. Not to mention, it can split the vote. While Clinton is the presumptive candidate for the Democratic party, creating further discord within the party can hurt the votes she could potentially receive if she becomes the official candidate.
This year’s election is a battle between the lesser of the two evils, but creating that fraction within the democratic party then undermines the public’s ability to make the final decision between the two true evils in the general election.
Russia does have an incentive to hurt the democratic party; electing Trump means a less competitive and controlling situation for Russia. A more isolated U.S. is perfect for Russian influence to grow, because with isolation, U.S. power, in terms of worldwide influence, begins to slowly fade.
Source: As Democrats Gather, a Russian Subplot Raises Intrigue