"It would've been... a dereliction of our duty not to investigate this information. ...[W]e'd been focused on the Russians as threat actors for a long, long time. Given what was going on with respect to e-mail dumps and hacking and the connection with those to the Russians in that summer and then, this thing drops. I think it would've been malpractice, a dereliction of duty... It would've been highly, highly inappropriate for us not to pursue it, and pursue it aggressively."