He ran for Mayor of New York and was a contender.
That is NOT someone who's career in politics is dead.
Now that Hillery!'s sweet lips is cutting him loose his career might be dead but I would not bet on it.
“He ran for Mayor of New York and was a contender.”
He only ran for the primary nomination, and lost with less than 5% of the vote... I don’t see how anyone would call that being “a contender”.