Lots of politicians don’t mind releasing their tax returns. They get bribed in ways that don’t tend to show up on the return, like selling their house for $100,000 more than it is worth. Or Hillary’s cattle futures!
Trump is a businessman with multiple businesses. A business can be harmed if details are released to its competitors. Running a business is something most politicians never do.That is why a senator running for President has no problem releasing their tax return, but an active businessman does.
$100K? Boy are you small time. $100k won't settle the annual bar tab in DC.
Ratchet it up to a couple of million and now we have some head room to talk bid'ness.