You don't see the Democrats attacking McCain in the same way that Obama is attacked by Republicans, because the mirror image attacks would lack all credibility if applied to McCain. Instead, the Democrats -- including Obama -- go after the McCain is dangerously old theme without using the words "old" or "senile".

That's why you get Obama saying things like McCain is "losing his bearings" or the campaign ad that pointed out that McCain doesn't know how to use e-mail. Of course, in that case, it's because his injuries from his Vietnam captivity make it painful to type for any period of time, so his staff and family handle e-mail for him.

Here's Harry Reid saying McCain is "dangerous". Or Ohio Governor Ted Strickland saying McCain is "not as stable mentally" as GWB. (Strickland said he didn't mean what he actually said.)

See, the Democrats don't have to stir up hate. They can go with pity for this poor old senile Senator...