Comey acknowledges that the FBI made some mistakes by "not communicating the status of certain sources" (Like the fact that HIllary Clinton paid for the Steele Dossier and they all knew it was fake) clearly but they won't do it again so everything is fine now.
Comey says that two doors lead to hell but they chose the least painful one before the 2016 election as he doesn't regret swaying public opinion before the election for Trump.

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