around any discussion conducted with the whistleblower. adam schiff promised testimony by the whistleblower but has backed off. going into the weekend the president is exuding confidence. >> what they are trying to do is weaken me but it has made me stronger. people are angry about it and it made republicans and people that vote for me not just republicans, really angry. >> reporter: the president is changing his story about the key players, take testimony from the ambassador to the eu, on october 8th donald trump tweeted he is a really good man and great american but now here is the president today. >> let me say i hardly know the gentleman. >> reporter: democrats are emboldened by new evidence, consider this letter from john bolton's attorney writing about his possible testimony. he, meaning bolton was