[View here as a Twitter thread]
Accessory after the fact is a theory of liability that basically means you found out about a crime after it happened, and then helped out. More here:
10/ If the NYT article is true, everything Trump did to impede or discredit the investigation also meets element 2. Trump says: “NO COLLUSION!” He will never say: “I was NOT an accessory to a crime after the fact.” He understands propaganda too well for that.