>The emails and documents showed that the Democratic Party's national committee favored Clinton over her rival Bernie Sanders in the primaries.[6] These releases caused significant harm to the Clinton campaign, and have been cited as a potential contributing factor to her loss in the general election against Donald Trump.[7]
The wiki article you are quoting from really buries the lede. To give one example in the debates there were plants in the audience to ask prearranged questions for Clinton.
>The emails and documents showed that the Democratic Party's national committee favored Clinton over her rival Bernie Sanders in the primaries.[6] These releases caused significant harm to the Clinton campaign, and have been cited as a potential contributing factor to her loss in the general election against Donald Trump.[7]