Define 'interfere.' Is it defined in the US Code somewhere?
It means to throw smoke bombs into the voting booth during elections so the voter accidently votes for the guy he is against.
Seriously, I'm not a lawyer. The Russians were using e-mails in an effort to sow discord in the American electorate, apparently at first, pro Trump, and after the election (yes AFTER) anti - Trump rallies were organized or "pushed" by these Russkies.
If you want U. S. Code stuff you'll need to consult a lawyer.
It's all moot anyway, you know; none of these Russkies will ever see the inside of an American courtroom for reasons already discussed.