In part II - I think around, the Senate Committee thing, when Michael asks Tom if he was moving to Las VEgas with his wife, kids and mistress to run the hotel, or something like that.
Tom says no, he was offered but turned it down and asks Michael, something like do I have to tell your everytime I turn down an offer.
That was kinda suspicious to me - yes, I would think if we are "family" , you would tell me if someone approaches you to go against me. Anyway that scene kinda made me wonder if Tom wanted to get out - One last thing - did Michael feel that close to Tom, like I felt he never really trusted him, because he was not a Sicilian?