Sununu apparently thinks we will believe his story on what Trump said about future elections. The problem with this is that the entire subject matter turns into something else. One of our failings in politics today is that we appear to allow and accept this.
That might be believable in isolation, but at this point, Trump has a long list of scary statements and a history of criminal acts to back them up. The failure to serve justice on Trump indicts our system and highlights the corruption saturating our government (and society).