Letting Bush be Bush
This might have worked when Bush was still views as an honest and trustworthy leader. But now that a majority of Americans feel otherwise, and a majority feel he's out of touch with common America, it's not going to do much good. It will be viewed simply as an attempt to shore up failing numbers.
Without a reason to feel otherwise, American views on the President aren't going to change much. Bush can be Bush all he wants now, and it's not going to help his that much. Or, as Harry Reid puts it:
"The president can give all the speeches he wants but nothing will change the fact that his Iraq policy is wrong," said Senate Democratic leader Harry Reid of Nevada.