cnn's pamela brown explains how the white house is reacting to news of flynn's work with investigators. >> reporter: well, president trump is responding to these latest revelations unsealed in court documents that michael flynn cooperated with mueller's investigators in the obstruction probe. and the president is making the false claim that he was never warned about flynn before bringing him on as his national security advisor. president trump on a twitter tirade complaining again about the origins of the russia investigation and repeating unfounded claims his campaign was spied on. tweeting, quote, treason means long jail sentences and this was treason. before taking issue with new details surrounding his former national security advisor michael flynn. saying, quote, it now seems general flynn was under investigation long before it was common knowledge. if that was the case and with me beeng one of two people who would become president, why was i not told so i could make a