But there was this executive order? https://obamawhitehouse.archives.gov/the-press-office/2015/0...

Ok. I am not an attorney. My views are my own. No purchase necessary. Not FDIC insured. YMMV. Consult a real lawyer. Don't be an idiot.

You right in a sense that when you read this, Snowden could easily be argued to fit the mold.

However, you will note that it later says that the actual designation ( verified here with treasury link I added ) is up to SOS and other involved individuals.

Note, that at the time I checked it, Snowden was not on that list and apparently has not been since issuance of this EO.

At least not yet.

edit, because there always exceptions: see wikileaks and note neither he nor his creation was sanctioned by OFAC either. However, that did not stop the state from making donations.. challenging.

wouldn't it be normal for indictments to be under seal? I agree with all your points though.

Agreed, but it does not make sending him funds illegal by virtue of being enemy of the state ( although I will admit I struggle with parsing that phrase ), which is the question posed by the original poster.

Edit: brackets

edit2: also, the fact that he may be potentially indicted does not mean it is illegal to give him money. Those are two separate issues