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I think Bush's policies are reminiscent or Saruman's care of the Shire. In the name of freedom he made everyone afraid and removed civil liberties. The names given to policies were the opposite of what was actually implemented. He locked people up without rights or trials for long periods of time -- at first with more obvious cause but increasingly because they defied him. Nature was despoiled at first for commerce and then in ways that "didn't even make bad sense". The travesty of the Bush administration isn't only on a global level, but on the personal level of our everyday lives.
And Dr. Rice makes an excellent Grima Wormtongue -- cowed and unsure of how he became aligned with such an obviously wicked person.