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Julian Assange, the WikiLeaks founder more accustomed to publishing others' secrets, has apparently become the subject of a new leak that shows him favoring the Republican Party a year before Donald Trump was elected.

In a private Twitter chat group, Assange called Democratic Party candidate Hillary Clinton a "bright, well-connected, sadistic sociopath" and said, "We believe it would be much better for the GOP to win," according to The Intercept. The authenticity of the 11,000-message conversation couldn't be verified, but The Intercept said it came from a former WikiLeaks supporter in the chat group and verified that the message group and its messages exist.

WikiLeaks didn't immediately respond to a request for comment.

WikiLeaks was involved in the controversial 2016 election, publishing alleged messages from Clinton campaign chief John Podesta and corresponding with Donald Trump Jr. before and after the election.

Assange has been holed up in a small room in the Ecuadorian Embassy in London for more than five years to avoid extradition for a rape charge in Sweden. The country dropped that charge but he's still facing a UK charge of skipping bail.