Tax returns?

The Clintons employ some of the best lawyers and accountants in the business. They are always under a microscope so everything they have done will have i's dotted and t's crossed by the book.

Bernie on the other hand is amateurish (looking at his tax return the schedules from which he is hiding) and not used to such scrutiny -- there will be a minefield in his financial dealings.

Yes, they do it slyly, maybe even legally bullet-proof.

But politicians can be destroyed -and are destroyed - when people believe them to be crooks. And the bar for THAT is not the same bar as that for legal action.