I really don't know where that phrase comes from, that it ain't over until the fat lady sings (a reference to the final act in an opera?) but there's no doubt that John McCain isn't conceding the election until she does.
On NBC's Meet The Press today McCain "guaranteed" the election will be close and said he believes he will win it.
In spite of the fact that there are some Republicans who say that "it's over" or believe the media are trying to give the impression that it's in the bag for Barack Obama, the polls show that McCain is, during this home stretch, closing the gap.
Whether that actually translates into a guarantee of victory is another story. But, at least outwardly, McCain appears cautiously optimistic.
McCain predicts the results won't be known when we all go to sleep election night. A winner won't be announced, he believes, until dawn's early light.
Frankly, I think those who perceive that the poll reporting that's been indicating that Obama has the lead helps the Democrats by discouraging Republican voters have it wrong. I think it leads to complacency among some Democrats resulting in a net gain for the GOP.