Julian Assange or someone using the WikiLeaks Twitter account messages Donald Trump Jr. to say his father should not concede the election.
“Hi Don; if your father ‘loses’ we think it is much more interesting if he DOES NOT conceed and spends time CHALLENGING the media and other types of rigging that occurred — as he has implied that he might do.”

Don Jr. later confirms that the messages with Assange are real.
This plays out four years later.
Sources
https://www.theatlantic.com/politics/archive/2017/11/the-secret-correspondence-between-donald-trump-jr-and-wikileaks/545738/
https://www.bbc.com/news/world-us-canada-41980359
Photo: Joshua Hoehne