I think she may have been specifically talking about Federal employees, rather than everyone, citing the FB group that was posting memes about AOC. Article 88 of the UCMJ: "Any commissioned officer who uses contemptuous words against the President, the Vice President, Congress, the Secretary of Defense, the Secretary of a military department, the Secretary of Transportation, or the Governor or legislature of any State, Territory, Commonwealth, or possession in which he is on duty or present shall be punished as a court-martial may direct."
Again, this only effects military, which the ICE isn't, and only commissioned officers in the military, which ICE also isn't.
Ceterum censeo Carthaginem esse delendam