On the other hand, when you do do insider trading (The SanFranNan Crime Family) or make deals with foreign businesses triggering 150+ suspicious transaction reports from banks (The Brandon Crime Family) you should be in some hot water. We'll see...
If he donated his pay he still has the tax liability minus charitable deductions.
IOW he paid to be our President. Not even counting what business losses he incurred.
Someone let me know if I'm wrong.