good evening from new york, i'm chris hayes. we are not even one month into the trump administration and already a major scandal exploding in washington, d.c. last night, president trump's national security advisor michael flynn, who even before this scandal was intensely controversial known for his bigoted views of islam and muslims, handed in his resignation after just 24 days on the job. today we got the trump administration's version of events. the president asked flynn to resign not because of what flynn did -- which the white house says it has no problem with -- but because he had lied about it to members of the administration. >> the level of trust between the president and general flynn had eroded to the point where he felt he had to make a change. the president was very concerned that general flynn had misled the vice president and others. >> here's what happened. on december 29, then president obama announced sanctions against russia for russia's alleged hacking of democratic e-mail accounts in the presidential election in order to boost president trump's