In an October 24, 2019 court filing by Flynn attorney Sidney Powell, on page 15 she requests the phone records of James Clapper to confirm his contacts with Washington Post reporter, David Ignatius. In particular, she’s interested in getting a copy of a letter that Clapper sent to Ignatius, dated January 10, 2017, where Clapper asks that he “take the kill shot” on Lt. General Michael Flynn.
Two days later, an article by Ignatius appears in the WaPo, dated January 12, 2017, titled “Why Did Obama Dawdle on Russia’s Hacking?” In it he writes the possible “kill shot” and keep in mind, Ignatius allegedly had the transcripts of Flynn’s calls with Kislyak, thanks to the possible leak by ONA Director, Col. James H. Baker (see below).
Ignatius writes with attached links:

James Clapper, now a CNN contributor and outspoken critic of President Trump, is known for falsely testifying in front of Congress in March 2013 that the National Security Agency does not collect data from millions of Americans. (Credit: Graeme Jennings/Getty Images)

Washington Post columnist David Ignatius listens to introductions before his interview with Iran’s Foreign Minister Mohammad Javad Zarif, hosted by the Center on International Cooperation, at New York University, April 29, 2015. (Credit: Richard Drew/The Associated Press)