It doesn't matter today because LEGAL and TRUTH are the enemy. But back in the day when it did matter were campaign contributions audited?

Audited for what? Audited that HOW and WHERE they were used was legal? Also audited for the source and if it was within the legal boundaries?

Today there is no legal or truth so it would be academic. But way back then before the stranglehold of the dumb don gang how did it used to be?