If I were on Trump’s legal team, I would pay much attention and record how the media presented as “news” what happened on January 6, 2021. Nicholas Sandmann’s legal team (Lin Wood’s firm) settled defamation lawsuits with the Washington Post and CNN. If I remember correctly, ABC’s Cecilia Vargas said Trump was “delusional” when the U.S. Capitol was invaded on January 6. Cecilia isn’t a licensed psychologist. I would look into whether Cecilia defamed Trump that day.
Trump is a public person. Sandmann is not.
President Trump getting a favorable outcome is highly unlikely.