Liberal Democrat turned conservative Republican turned moderate Democrat turned professional Hillary hater turned Fox New pundit Dick Morris has a column explaining why & how McCain can win.
For Harry Truman in 1948, the presidential race shifted dramatically in the final week, and it's happened three more times in the past 30 years. In 1980, Reagan came from eight points behind to a solid victory by winning his sole debate with Carter in the last week of October. In 1992, Clinton, who had fallen behind in the polls because of the pounding he was taking over his liberalism and propensity to raise taxes, surged ahead of Bush when Special Prosecutor Lawrence Walsh announced that he was indicting Defense Secretary Casper (Cap) Weinberger, an indication of Bush's possible complicity in the Iran-Contra scandal. And in 2000, Bush's three-to-four point lead in the polls was erased over the final weekend when reports surfaced that he had been cited for DWI 20 years before and had not revealed the fact to the public. Bush still won the election, of course, but Gore won the popular vote by half a point.
Morris then writes:
What does McCain have to do to pull off a similar shift this time?
My answer based on Morris’ history is that McCain must either –
1 – Win a solid victory in the next debate, which is scheduled for 2012
2 – Have a prosecutor indict Obama’s future Secretary of Defense
3 – Build a time machine and arrange to have Obama arrested for DWI in 1988.