Has everyone forgot that since time immemorial, whenever a candidate is found to have received campaign contributions from a questionable source, once it has been revealed, they simply return the funds or donate them to some charity.
In this case, the claim is that Trump “illegally” paid for an expense that isn’t directly campaign related (fail to see how doing something to keep your wife from being embarassed is campaign related) out of his own pocket and it affected the election.
If they take this to court, the judge (unless one of the most leftist hacks available) will laugh this out onto the street.