Pretty much this. The democrats put their resources into passing infrastructure and inflation bills and investigating the events around Jan 6.

Everyone agrees that the Trump kids got up to no good but the relative seriousness of their crimes compared to everything else Trump did was pretty small.

Since the Republicans have no actual dirt on Joe Biden and are about as capable of passing legislation as a bag of ornery chipmunks, they latch onto these ‘scandals’ that would barely be a blip for any Republican administration.