In 2016, Roger Stone communicated with a senior Trump campaign official about upcoming WikiLeaks disclosures.<br />According to CNN, Stone revealed as much Thursday in an opinion piece for the right-wing Daily Caller.<br />Stone published an exchange he had with Steve Bannon, then the chief executive of the Trump campaign.<br />The emails are among the documents in special counsel Robert Mueller's possession.<br />He's investigating whether Stone had an inside-track with WikiLeaks.<br />Mueller also wants to know whether Stone shared any of that information with then-candidate Trump or Trump's inner circle. <br />