Depends on the country and where it was recorded
In a lot of places, it’s completely legal to record if he’s part of the conversation.
If he was not, in many places it’s illegal
If it’s a public place where there is no expectation of privacy, also possibly nothing you can do
That’s true… They just need enough to start a civil war (and the entire point by Trump, and the rest of his cronies is to stay out of prison).
And all he needs to do, is start a coup, but not be 100% upfront this time. And he’s been sowing those seeds… He also needs to take over the justice system and the voting system (and he’s been trying to do that too). The idea, like dealing drugs or the mafia, is to try to put measures in place so that other people get blamed