Sir, the ONLY criteria for vote going forward should be who delivered the most for your nation. It is actually pretty basic and common sense oriented question. I, sitting in the US know how corrupt this guy was, he allowed the murderers of his own wife walk away to avoid getting into distractions for his own political future.
Mr. Khan has come down to his level, he has no choice but to follow Mr. Zardari's lead. If Mr. Khan had wisdom, he would've done a lot of good stuff and would've stood on a much different political standing. Hell, based on the chance he's had since the last elections, if he acted mature, by now, he would've replaced this guy that he is about to call "the boss". But instead of seeing a clean field and a huge opportunity, he kept playing dumb and negative cards, essentially getting check mate here. Mr. Khan's focus wasn't to make a place for him in the political landscape, instead, his entire political campaign comes as personal hatred and against a family. That has never worked in the history and it failed here too.
National political require a national strategy. You can't go after one family of a few people and expect national results. The failure is visible here. Mr. Khan's inability to become a real leader will now allow Mr. Zardari to be the boss and potentially make another government in the near future. Sadly, that would be utter financial destruction of Pakistan!