A 'boomerang,Byrne and Butina. 'Exculpatory evidence'. https://thehill.com/opinion/white-house/454185-how-mueller-deputy-andrew-weissmanns-offer-to-an-oligarch-could-boomerang https://saraacarter.com/russia-probe-twist-a-billion-dollar-ceo-a-convicted-russian-agent-and-the-fbi/