Expert on Congress's Power Claims He Was Muzzled for Faulting Bush

A dispute involving a researcher at the nonpartisan Congressional Research Service is fueling a debate over whether analysts throughout the government are being muzzled to prevent criticism of Bush administration policies.

Louis Fisher, a 36-year veteran of the agency and an expert on the separation of powers, said his superiors wrongly punished him for giving interviews and publishing scholarly articles under his own name that contained criticism of the White House. Top officials deny those allegations, saying they were simply trying to protect the agency's reputation for nonpartisanship and objectivity.

The dispute has thrust the research service, a branch of the Library of Congress, into a debate about whether the Bush administration is trying to control the flow of information to lawmakers and the public. Earlier in the week, a political appointee resigned from the National Aeronautics and Space Administration after coming under fire for limiting access to an expert on global warming. The White House also faces accusations that it misled lawmakers about the true cost of the new Medicare drug benefit.

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