Thanks PJ!
But, Trump DIDN’T pay those monies from campaign funds. They were paid from his personal account and they were paid after he was elected.
And that was why the FEC didn't pursue charges against Trump. They were guided by the jury verdict in the John Edwards case. Cash is fungible, so it's a bit of a misnomer to say one has a campaign account and a personal account. It's the classic example of paying from the left pocket or the right pocket.
But it goes directly to your sixth amendment concerns that Trump wasn't allowed to call the former head of the FEC to explain to the jury why monies can't be deemed to be campaign funds when there are multiple motives for spending the money.
Paying it after he was elected would still be a personal act and not covered by immunity.
-PJ