This Maddow interview of Lev Parnas is historic.

[bucolic_frolic]

98. Rachel hinted that getting this interview was in development for a long time, since early November

So the House didn't know what Parnas woud say, or if he would even talk, or even if he had anything to say. She indicated the decision was made very recently by Mr. Parnas for his own safety, that the information is better in public.

A lot of the interview needs to be corroborated with other witnesses. He was very certain about the relationships involved and heard parts of conversations on speakerphones, but some is not direct first hand evidence.