So far, he has only been banned from running in this election.
Unless he gets deleted again, he's free to run in the next election.
No there aren't a set of concrete rules to determine how long someone has to go without getting deleted to run. I'd like to work with whoever the next administration is to decide that.
Regarding such, a simple click of a button to only allow users with 10,000 points and 30 days experience would easily solve that problem, and cut down on any potential alts.
Just toying with that idea though, haven't taken it under serious consideration yet.
And my advice for those who think WhiteNat should be banned for his behavior: you should take it to a site mod. The way I see it, if he follows the TOS to avoid getting deleted, he's alright to run.