If it was a camp[aign expense, he paid with his own money. No crime.
If it wasn’t — and the law says that if there is anothe rpurpose, such as protecting your family or business — then there’s no crime.
Yet somehow, Cohen’s corrupt Clintonista lawyer manage do get him to plead guilty to both of those things.
Cohen probably carried a lot of money around NYC and probably got to see the Woolworth Building often.