On Tuesday, Attorney General Alberto Gonzales is scheduled to testify before the Senate Judiciary Committee. He continues to insist that he has “nothing to hide.” He is wrong. He should hide his head in shame and the Senate should tan his hide for his role in the politicization of the Just-Us Department and his general lack of competence and integrity. As the investigation into the firing of U.S. attorneys proceeds, let us hope that the Senate also takes a good, hard look at other instances, such as the disturbing one described in the following New York Times editorial, in which the Attorney General and his minions may have directly and indirectly pressured prosecutors to pursue cases for political reasons:

A Woman Wrongly Convicted and a U.S. Attorney Who Kept His Job

Opponents of Gov. Jim Doyle of Wisconsin spent $4 million on ads last year trying to link the Democratic incumbent to a state employee who was sent to jail on corruption charges. The effort failed, and Mr. Doyle was re-elected — and now the state employee has been found to have been wrongly convicted. The entire affair is raising serious questions about why a United States attorney put an innocent woman in jail.

The conviction of Georgia Thompson has become part of the furor over the firing of eight United States attorneys in what seems like a political purge. While the main focus of that scandal is on why the attorneys were fired, the Thompson case raises questions about why other prosecutors kept their jobs.

The United States Court of Appeals for the Seventh Circuit, which heard Ms. Thompson’s case this month, did not discuss whether her prosecution was political — but it did make clear that it was wrong. And in an extraordinary move, it ordered her released immediately, without waiting to write a decision. “Your evidence is beyond thin,� Judge Diane Wood told the prosecutor. “I’m not sure what your actual theory in this case is.�

Members of Congress should ask whether it was by coincidence or design that Steven Biskupic, the United States attorney in Milwaukee, turned a flimsy case into a campaign issue that nearly helped Republicans win a pivotal governor’s race.

There was good reason for the appeals court to be shocked. Ms. Thompson, a 56-year-old single woman, seems to have lost her home and spent four months in prison simply for doing her job. Ms. Thompson, who spent years in the travel industry before becoming a state employee, was responsible for putting the state’s travel account up for competitive bid. Mr. Biskupic claimed that she awarded the contract to an agency called Adelman Travel because its C.E.O. contributed to Mr. Doyle’s campaign.

To charge her, Mr. Biskupic had to look past a mountain of evidence of innocence. Ms. Thompson was not a Doyle partisan. She was a civil servant, hired by a Republican governor, with no identifiable interest in politics. She was only one member of a seven-person committee that evaluated the bidders. She was not even aware of the Adelman campaign contributions. She also had a good explanation for her choice: of the 10 travel agencies that competed, Adelman submitted the lowest-cost bid.

While Ms. Thompson did her job conscientiously, that is less clear of Mr. Biskupic. The decision to award the contract — the supposed crime — occurred in Madison, in the jurisdiction of Wisconsin’s other United States attorney. But for reasons that are hard to understand, the Milwaukee-based Mr. Biskupic swept in and took the case.

While he was investigating, in the fall of 2005, Mr. Biskupic informed the media. Justice Department guidelines say federal prosecutors can publicly discuss investigations before an indictment only under extraordinary circumstances. This case hardly met that test. [full text]