unbelievable plot, one personally directed by vladimir putin, in which donald trump would play a role to disrupt the functioning of the u.s. election in 2016. and he was so alarmed about it, he told a friend i feel like i'm sitting on a nuclear weapon. >> as you mentioned a moment ago, republicans are seizing on the fact he was working for opposition research and working for the dnc at the time he was compiling this information. senator chuck grassley is also seizing on a criminal referral for steele. he says steele is a liar, that when he was talking to the fbi he was not telling the fbi that he was also talking to the news, talking to the media, talking to papers like "the washington post." >> yes. one of the significant developments here, we talked about the nunez memo, the schiff memo, and then there's the letter written by senator grassley and senator lindsey graham to the justice department a former criminal referral