Bush can't cave on Rove because it would have the effect of encouraging the mindless, liberal, cowards into continuing attacks on anyone or anything he promotes now or in the future.
Think they know he won't cave. . .he does not usually; but they know the Repubs do not really 'fight' as well.
These Demrats know they can win some spin and of course, owning the Left-sream Media make their task a whole lot easier.
They know they score on perception; not reality. . .