He would have to:
[*]Be able to prove beyond any reasonable doubt that his administration was truthful and correct about Saddam Hussein having had both the ability and the intent to use WMD's against the US. And, further, prove that when the US initially began going through the process of UN inspections and sanctions, it did not intend, all along, to invade Iraq, regardless of the outcome of those inspections and votes on sanctions...
[*]Convincingly demonstrate that neither he nor anyone high up in his administration was part of, or had knowledge of, the doctoring and/or withholding of information for the purposes of enlisting support for the war on any false pretenses...
[*]Convincingly demonstrate that neither he nor anyone high up in his administration had any intent, from the outset of his presidency, to pursue the agenda, as stated on the PNAC web site, to eventually begin imposing a new world order by nation building in the mideast and/or elsewhere...
[*]Convincingly demonstrate that neither he nor anyone high up in his administration stood to gain, financially, from the war in Iraq and/or the awarding of contracts related to it. And, further, prove that the awarding of contracts was based solely on a company's ability and willingness to perform its contracted functions effectively and reliably, and not on any personal or professional relationships that he and/or others in his administration have/had with bidding companies...
[*]Convincingly demonstrate that neither he nor anyone high up in his administration condoned, sanctioned, or had any foreknowledge of inhumane treatment of prisoners and/or acts of torture being committed in Abu Ghraib, Gitmo, or any other US detention facilities. And, further, prove to be respectful of, and in accordance with, the Geneva Convention's definitions of and rules on torture; not some made-up set of rules and terms that were contrived to exempt him having to follow established guidelines on the humane treatment of prisoners of war...
[*]Convincingly demonstrate that neither he nor anyone high up in his administration had anything to do with the leaking of information related to the Valerie Plame case, nor with any coverup afterwards...
[*]Convincingly demonstrate that people like John Poindexter, Elliot Abrams, et al. who had been involved in criminal activities related to the Iran-Contra scandal were the best choices for their new appointments and that it wasn't just a payoff for their taking the fall, when they did...
[*]Convincingly demonstrate that neither he nor anyone high up in his administration is beholden to any special interests nor that any decisions have been made that have put advancing the causes of those special interest ahead of what is right, just, legal, and ethical...
[*]Convincingly demonstrate that he has always been, and will continue to be, committed to "restoring honor to the Presidency," as he once claimed, and that it wasn't just a cute soundbite that some speechwriter thought up for him...
If he can do all these things, I'll vote for him in a heartbeat... and please spare me your response if you think he's already done, or been doing, these things all along since it should be obvious that I don't think so.
cumhail