We know how Trump will campaign against Biden. He will attempt to belittle him at every turn; he will blame liberals, governors, China, the MSM, and anyone other than himself for his failures; and he will lie, over and over again, about his record and Biden’s. How should Biden respond to this?
Nancy Pelosi drives Trump nuts by patronizing him. Ted Cruz did the same thing, with some success, during the 2016 debates. A similar approach might work for Biden between now and November.