Probably couldn't get a court, even a based one to convict of High Treason without a foreign country being directly implicated and caught red handed interfering in the election results.

It'd be much more likely to see Americans convicted of Seditious Conspiracy.

18 U.S. Code § 2384.Seditious conspiracy

If two or more persons in any State or Territory, or in any place subject to the jurisdiction of the United States, conspire to overthrow, put down, or to destroy by force the Government of the United States, or to levy war against them, or to oppose by force the authority thereof, or by force to prevent, hinder, or delay the execution of any law of the United States, or by force to seize, take, or possess any property of the United States contrary to the authority thereof, they shall each be fined under this title or imprisoned not more than twenty years, or both.