It wasn't a campaign expenditure, no reason to report it.
Trump wasn't concerned about adulterous affairs swaying the religious right in the election. The hush money was to protect his personal spotless reputation.

Trump wasn't concerned about adulterous affairs swaying the religious right in the election.
Doesn't matter, it wasn't a campaign expense.
How do you know that? Did you talk to Trump?
And by the way, prosecutors will charge it as a campaign finance crime/felony/expense because of the obvious. He needed to hide an affair weeks before the election, the money was not reported, it exceeded $2700 dollars, and it was reported to have come from stolen money out of his charity.
Under federal law, an individual could not donate more than $2,700 directly to Trumpās primary or general election campaign in 2016. A $130,000 payment would far exceed that limit. Remember, Trump already lied about where the money came from. So for you to say it is not a campaign expense, is the joke of the day. Since Trump was lying, how in the hell do you know if it was an expense or not? Lol!