On debate night, JD Vance started from a disadvantage and had to rehabilitate his image — which he did well, experts told Business Insider.Michele Crowe/CBS via Getty ImagesSen. JD Vance and Gov. Tim Walz took the stage in their first and only debate on Tuesday.Experts told BI Vance started with a disadvantage and made moves to rehabilitate his image.Meanwhile, Walz's kindness and lack of experience as an attack dog worked against him.On debate night, Sen.