There are four main differences between the Biden document scandal and the Trump document scandal.

2:22 Trump's conduct was likely illegal, Biden's conduct was likely not.  (Espionage Act)

5:37 Quantity difference (Trump 322+, Biden 20) and Quality difference (top secret and nuclear at Trump, Biden is lower classified docs)

10:15 Motive.  No clear motive for Biden, but Trump established motive by referring to them as "personal records."

12:42 The Reaction.  Trump claimed both FBI planted docs + he "thought" them declassified, Biden's own AG is launching investigation and Biden cooperating fully after self-reporting infraction.

BONUS 15:17 Refuting the "President" defense the right is currently using.