Yes, but when those payments were to another party than the candidate to provide a non-monetary service to the campaign (burying news that could affect people’s actions) what’s called an in-kind contribution. If you don’t report those benefits publicly (or you try to disguise them as something else like legal fees for example), congratulations you broke election laws and interfered with the lawful election process.
Yes “Election Interference” is a specific term of art related to the conduct of the actual election and electioneering, but it can also be understood more broadly by laypersons as anything that interferes with the legal conduct of a wider election/campaign event.
Not sure what that has to do with the potential for shenanigans given the public news of a sentencing date being 4 days before the nominating convention, but ok.