He has supported the administration's most controversial policies, including its treatment of terrorist suspects, and he has balked at Democratic demands for an investigation of pre-war intelligence on Iraq.

Shortly before he left Congress, Bereuter unexpectedly released a statement, calling the Iraq war (which he had previously supported) "a mistake," and strongly criticized a "massive failure" of pre-war intelligence.

Mr. Kerry says that the pre-war intelligence was a reason to press for further inspections and pressure on Mr. Hussein, and that the vote to authorize war was part of that pressure.

He stated he had not thought it appropriate to embark on a study of the pre-war intelligence: "I had to draw the line somewhere."

Senator Rockefeller is widely-known for his leadership of an investigation into pre-war intelligence on Iraq's weapons of mass destruction.

Republican and Democratic leaders in the Senate were locked in a tense, closed-door struggle today over how aggressively to investigate the Bush administration's handling of pre-war intelligence on Iraq.

An example of a Congressional investigation, is the Senate investigation on pre-war intelligence which produced the Report on Pre-War Intelligence on Iraq.

He was not a proponent of investigating pre-war intelligence.

It also allows information to be assembled and reviewed by a wide variety of sources and agencies, to address concerns that pre-war intelligence did not include robust dissenting opinions on Iraq's alleged weapons programs.

November: The New York Times answers the question as to what new evidence do the Democrats have regarding pre-war intelligence?