The only ones trying to sell a narrative is the Republicans, who are desperate for a scandal (any scandal!) involving Biden to deflect from the fact that their likely candidate is in seriously deep shit. The Democrats have the facts on their side. The line about "selling the illusion" doesn't come from some spin doctors, it comes directly from the latest star witness that was supposed to blow the Biden Crime Family's (

) corruption wide open, and ended up being yet another dud, because the Biden Crime Family is a figment of the imagination.
If there's evidence of corruption on Joe's part I'm sure it will come out. Unfortunately all the Repugnicans have been able to produce are half-baked accusations and conspiracy theories. But I wish them all the luck, if Biden really is the master criminal they desperately want the public to believe he is then it should be exposed.
On the other hand there are REAMS of evidence damning Trump. And as a bonus Biden never tried to overthrow the government, so on balance I think he's the better candidate.