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President Obama is about to nominate someone for the Supreme Court. On the day he or she is unveiled, conservatives will announce that they are approaching the selection with an open mind. Ten minutes later they will declare, more in sadness than anger, that the nominee has the judicial philosophy of Chairman Mao and the temperament of Dennis Rodman. Ten minutes after that, liberals will rise en masse to defend the nominee as wise, brilliant and humane, a person who restores our faith in humankind. And the kabuki theater will continue like that all summer long.