justice he made a big mistake. we'll see when the facts come out. >> following a two-year court fight trump's former white house counsel don mcgahn has been back in the news and testified friday behind closed doors before the house judiciary committee about trump's attempts to obstruct the russia investigation and another viewer wants to know now that don mcgahn has testified how can congress or others make use of this testimony? is this going to go anywhere? >> it is crazy that it has taken over two years. a lot of people are to blame for that. mcgahn of course is a key witness on obstruction in the mueller report, told by donald trump to fire robert mueller and then donald trump asked mcgahn to lie about it and create a false document. that is the most flagrant incident of obstruction in the whole report. this has been the subject of an ongoing court battle up and down with the court of appeals. congress to be realistic here they're not going to do anything with this, certainly not impeach donald trump a third time. now the question is will doj act? these are crimes that doj still has the ability to charge.