Comey didn’t want the Russia hacked the DNC story to crumble.
“Not included in the written proffer was an additional offer from Assange: He was willing to discuss technical evidence ruling out certain parties in the controversial leak of Democratic Party emails to WikiLeaks during the 2016 election. The U.S. government believes those emails were hacked by Russia; Assange insists they did not come from Moscow.
"Mr. Assange offered to provide technical evidence and discussion regarding who did not engage in the DNC releases," Waldman told me. "Finally, he offered his technical expertise to the U.S. government to help address what he perceived as clear flaws in security systems that led to the loss of the U.S. cyber weapons program."