Who is Comey’s friend, and what is the friend’s relationship to the Clintons? Who is Comey’s friend, and why would a journalist trust the friend as a legitimate source?
Who Is Daniel Richman, the Columbia Professor Who Leaked Comey's Trump Memo? - NBC News
Richman said he's sure that politics didn't play a part when Comey decided to re-examine Clinton's emails."When you have an obligation to disclose or to qualify, you do it full-stop," Richman added. "You don't worry about timing, you don't worry about how it will be read or spun by others."
Odds are 80/20 he;s a liberal, just based on the fact he is a law school professor. He is openly a defender of Comey's decision to whitewash Hillary, and would find Rosenstien's legal analysis in the "fire Comey" letter to be incorrect.