How about Sedition?
Haha, don't make my mouth water. Love to used the old laws against the Alphabet networks as their early versions were used against partisan newspapers then when parties fell out of favor, the imprisoned became the warden.
But the last time I can remember the surviving laws of sedition successfully used was the case against Oscar López Rivera, the Puerto Rican militants who did use violence against the United States. He got a pardon by Obama on his way out.
His case should give you an idea of what the courts consider sedition.
And no, I don't know specifically the difference, if there is one between sedition and treason. The sources I've read sound a awful lot alike. Dunno. Ask a real lawyer