That would require a constitutional amendment in order for him to be eligible. Heβs revealed himself to be pretty dumb, but even I give him enough credit to not be so stupid as to think he will one day he President.
There's very little doubt in my mind. The bot thing was always just rhetorical. he didn't suddenly "discover" something he wasn't already well aware of.
Yes. This has been covered widely and was a key reason he had to follow through with the purchase. The bot thing was an attempt to get out of buying Twitter, not something he actually believed. You need to realize that he's like Trump: lying is kind of beside the point. He'll say whatever he thinks will get him what he wants, which ultimately public adulation, however hollow that is.
In any case, I suspect that the GP comment by giraffe_lady, explains why he was interested in Twitter at all -- why bothering trying to get leverage over the board.
Or, if he wants to eventually become the President of the US, then that's an alternative explanation (of why he cared)?