Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) In the final months of the 2016 campaign, longtime Donald Trump associate Roger Stone repeatedly discussed his backchannel communications with WikiLeaks founder Julian Assange and claimed knowledge of forthcoming leaks from the group, a CNN KFile review of his public statements shows. Stone's comments about WikiLeaks have come under increased scrutiny as the FBI and congressional committees investigate whether Trump associates were involved in Russian efforts to interfere in the 2016 election. Stone has repeatedly and publicly denied that he had any contact with Russian officials during the campaign. Stone declined to answer questions from CNN for this story. After this story was published, WikiLeaks tweeted, "WikiLeaks & Assange have repeatedly confirmed that they have never communicated with Stone."Stone repeatedly discussed his back channel communications with WikiLeaks founder Julian Assange.Stone has repeatedly and publicly denied that he had any contact with Russian officials during the campaign. 
 Question:"I have been forthright about the fact that Julian Assange of _ and I share a common friend who has communicated with both of us," he writes.

WikiLeaks