Biden will beat himself. Trump can take the high road.
This is generally true, but it is not really even Biden as the candidate. It is the ideas behind Biden that will lose as even his own supporters recognize he is more of a puppet.
Trump needs to hammer his ideas and record and let his surrogates and others attack Biden the person. Trump’s message is one of optimism and inclusion and as we saw with the RNC convention it is a stark contrast to the message from the DNC.