THE LIBBY EFFECT

President Bush's decision to commute the prison sentence of former White House aide I. Lewis "Scooter" Libby aroused the ire of critics on the left, but the move's practical impact on the president's diminished popularity is likely to be minor.

While prominent conservatives applauded the move, it could wind up putting pressure on some Republican presidential candidates to defend the commutation for the remainder of the campaign. And some rank-and-file Republican foot soldiers were disappointed that Mr. Bush didn't go further.

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