'8647' got James Comey indicted. What exactly does it mean?

A demonstrator holds up an "8647" sign at a "No Kings" protest in Louisville, Ky., in June 2025. It's an anti-Trump slogan, with multiple interpretations. Jon Cherry/AP hide caption toggle caption Jon Cherry/AP Former FBI Director James Comey was charged this week over a year-old social media post of a seashell formation that the Justice Department alleges constituted a threat to President Trump's life. …