do we have a word for the kind of crime where a person is found guilty of attempting to undermine the nation itself?

https://uscode.house.gov/view.xhtml?path=%2Fprelim%40title18...

  §2381. Treason

  Whoever, owing allegiance to the United States, levies war against them or adheres to their enemies, giving them aid and comfort within the United States or elsewhere, is guilty of treason and shall suffer death, or shall be imprisoned not less than five years and fined under this title but not less than $10,000; and shall be incapable of holding any office under the United States

  §2382. Misprision of treason

  Whoever, owing allegiance to the United States and having knowledge of the commission of any treason against them, conceals and does not, as soon as may be, disclose and make known the same to the President or to some judge of the United States, or to the governor or to some judge or justice of a particular State, is guilty of misprision of treason and shall be fined under this title or imprisoned not more than seven years, or both

Yes, but it's become a swear word along with the F-word.

Lol if Trump is convicted of treason because some researchers didn't get a grant

Tree, son!