Yes. The Donald should use sedition instead of treason.
Sedition. Sedition, crime against the state. Though sedition may have the same ultimate effect as treason, it is generally limited to the offense of organizing or encouraging opposition to government in a manner (such as in speech or writing) that falls short of the more dangerous offenses constituting treason.
It might be that once they are arrested and only charged with sedition, it might be more palatable to the masses.