In short:
Outgoing US President Joe Biden has pardoned his son Hunter Biden, saying “raw politics … led to a miscarriage of justice”.
Hunter Biden was convicted of gun charges and tax evasion and was facing sentencing hearings scheduled for mid-December.
Joe Biden said he made the decision over the weekend while spending the Thanksgiving holiday with his family.
It’s to stop him from coming after anything else they might trump up. (Weird that trump the verb is doubly appropriate.)