From the 22nd ammendment:
"1. No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once".
Well Bill was elected twice! So Bill is inelligable for the office of President unless you say "oh, he's eligible to BE president, just not to be ELECTED president." What would the supreme court say to that argument?
They'd say that is exactly what the 22nd Amendment says. The language is as plain as day. It's not even a close call.
The Supreme Court would only get such a case on a suit after Hillary/Bill were chosen by more than 270 electors.
In my opinion, they would either rule that the case was non-justiceable, or would rule in favor of the election result.