Do you have any evidence for any of the above?
Jeff Sessions did an ethical thing by recusing himself because he was a part of the campaign that was being investigated.
I presume Giuliani is an ethical man. Do you have evidence otherwise? He has been hired as the President's attorney, so at this point he is arguing for his client. Do I need to prove that? Therefore, the words he says are all to advocate for Trump's position. They are not necessarily his own opinion.
One of Cohen's clients is Sean Hannity. Cohen thinks so and Hannity has said both that he was and that he wasn't, but it appears that he has been based on acknowledged payment and his request of Cohen for attorney-client privilege. Sean Hannity has made no secret of his extremely close relationship with the President. Do you doubt that?
The President and his team have characterized their administration and legal wranglings by assigning blame to others. That is obvious. The question is whether others are truly to blame or if the President is to blame. Sessions is a favorite punching bag for the President. I think everyone knows that, so just what evidence are you looking for?