But Senator James Inhofe, an Oklahoma Republican on the committee, immediately disagreed, setting the stage for a series of partisan exchanges. “First of all, you can read the same report and come up with different conclusions, which is quite obvious and will be obvious,” Mr. Inhofe said, adding that the report cannot easily be interpreted as “a devastating condemnation,” as Mr. Levin asserted.

The long-awaited report by Thomas F. Gimble, the Pentagon’s acting inspector general, concluded that, while the Feith team did not violate any laws or knowingly mislead Congress, it developed dubious intelligence that was inconsistent with the findings of the wider intelligence community.

Mr. Gimble told the committee today that, while the Pentagon’s in-house intelligence-gathering was not illegal or unauthorized, “the actions, in our opinion, were inappropriate, given that all the products did not clearly show the variance with the consensus of the intel community, and in some cases were shown as intel products.”

When Mr. Inhofe pressed Mr. Gimble on whether he agreed with Mr. Levin’s characterization of his report, Mr. Gimble said he viewed the document as “a flat, fact-based report of the events that occurred. I don’t have an opinion as to whether it’s devastating or not devastating.”

On Thursday, as details of Mr. Gimble’s report were beginning to come out, Mr. Feith issued a statement saying his office’s activities had been authorized by former Defense Secretary Donald H. Rumsfeld and former Deputy Secretary Paul D. Wolfowitz, and that his office properly shared its findings.