Don't kid yourself. Never gonna happen.
It doesn't matter if Obama recorded himself demanding the wiretaps in person (which he never did, I'm certain). Wouldn't matter. They'd claim he was taken out of context, that it doesn't matter, that a wiretap isn't a wiretap, on and on.
Those who like Obama will not be swayed, ever.
Those who like Trump will know the truth.
Hmmm, they said the exact same thing about Trump.☺