I think Bush laid low because his numbers are down and his taking a high profile in places like California and NJ would only have done more damage. And he has been in this position before. I remember when he was interviewed by Russert and expressed confidence he would be reelected. His numbers were so low and everyone thought Iraq was ssuch a disaster that Bush's confidence was viewed as irrational. So he can still come back. But the lame duck status creates new challenges taht I think require him to be more aggressive.
My prayers are with him.