Depends on which president.

In Russia, China, USA, its de facto legal.

And it also depends on which president you made the threat against, and where you are. I’m pretty sure as a US Citizen in the US, I can safely say this:

I’m gonna kill the President of PRC. I have always wanted to, I have a personal grudge his political party, and him being in that party make him my enemy. I really wanna shoot him in the face, and if I had a gun, and he was right in front of me, I’d shoot him until he dead, then reload and keep shooting.

There. I said it. Lol. FBI wouldn’t bat an eye since the US and PRC are adversaries right now. I’m gonna wait and see if PRC is gonna send their agents for me.

(I mean unless they settle on some trade deal that ends with deporting US Citizen anti-PRC dissidents? 👀)