I find it remarkable how many Americans insist that Joe Biden was somehow directing the prosecution of Trump, even though Jack Smith was appointed as special counsel and thus guaranteed a significant amount of independence and insulation.
I look at this differently. He's showing a rival that he won't forget a slight (and trying to jail Trump for life was worse than anything Trump has done to Biden). Today we laugh together at a man who crossed me. Tomorrow I'll nail your ass to my wall if you cross me. Let's eat.