Actually, I believe the "fix" was in from the beginning - witness how Romney was awarded 43 delegates in Repub-controlled VA. The GOP determined it's Willard's turn and with his $$$ and business background, he'd be a sure bet against Pres Obama...what the GOP didn't count on is the economy rebounding, Willard's MA mandated-healthcare law being an issue, and Willard's inability to connect with people not in a country club.
With all that said, Nov will be a very close race - lots of people out there simply hate Obama although they hesitate to say why...but my guess is we all know why.