Treason is an incredibly rare charge in the American legal system. The last time the US Federal government charged anyone with treason was in 2006, and the last conviction was in 1952:
https://en.wikipedia.org/wiki/Treason_laws_in_the_United_Sta...
It's the only crime defined explicitly in the Constitution, specifically to make it harder to charge people with it.
It's the only crime defined explicitly in the Constitution, specifically to make it harder to charge people with it.