Sources: Christie didn't want to be VP because he fears Romney will lose

Romney’s top aides had demanded Christie step down as the state’s chief executive because if he didn’t, strict pay-to-play laws would have restricted the nation’s largest banks from donating to the campaign — since those banks do business with New Jersey.

But Christie adamantly refused to sacrifice his post, believing that being Romney’s running mate wasn’t worth the gamble.

“[Christie] felt, at one point, that [President] Obama could lose this. And, look, there still is that chance. But he knows, right now, you have to say it’s unlikely,” one source said.

The tough-talking governor believed Romney severely damaged his campaign by releasing only limited tax returns and committing several gaffes during his international tour in July.