From the Sunday WaPo:
One Republican official described the mood at the top of the campaign as apprehensive. " 'Grim' is too strong," the official said. "If we feel this way a week from now, that will be grim."
That Republican official said polling for Bush showed him in a weaker position than some published polls, both nationally and in battlegrounds. In many of the key states, the official said, Bush is below 50 percent, and he is ahead or behind within the margin of sampling error -- a statistical tie.
"There's just no place where they're polling outside the margin of error so they can say, 'We have this state,' " the official said. "And they know that an incumbent needs to be outside the margin of error."